diff --git a/services/inputflinger/dispatcher/Android.bp b/services/inputflinger/dispatcher/Android.bp
index a98f4b4..b242eec 100644
--- a/services/inputflinger/dispatcher/Android.bp
+++ b/services/inputflinger/dispatcher/Android.bp
@@ -67,4 +67,5 @@
     export_header_lib_headers: [
         "libinputdispatcher_headers",
     ],
+    logtags: ["EventLogTags.logtags"],
 }
diff --git a/services/inputflinger/dispatcher/EventLogTags.logtags b/services/inputflinger/dispatcher/EventLogTags.logtags
new file mode 100644
index 0000000..9c0f80e
--- /dev/null
+++ b/services/inputflinger/dispatcher/EventLogTags.logtags
@@ -0,0 +1,42 @@
+# The entries in this file map a sparse set of log tag numbers to tag names.
+# This is installed on the device, in /system/etc, and parsed by logcat.
+#
+# Tag numbers are decimal integers, from 0 to 2^31.  (Let's leave the
+# negative values alone for now.)
+#
+# Tag names are one or more ASCII letters and numbers or underscores, i.e.
+# "[A-Z][a-z][0-9]_".  Do not include spaces or punctuation (the former
+# impacts log readability, the latter makes regex searches more annoying).
+#
+# Tag numbers and names are separated by whitespace.  Blank lines and lines
+# starting with '#' are ignored.
+#
+# Optionally, after the tag names can be put a description for the value(s)
+# of the tag. Description are in the format
+#    (<name>|data type[|data unit])
+# Multiple values are separated by commas.
+#
+# The data type is a number from the following values:
+# 1: int
+# 2: long
+# 3: string
+# 4: list
+#
+# The data unit is a number taken from the following list:
+# 1: Number of objects
+# 2: Number of bytes
+# 3: Number of milliseconds
+# 4: Number of allocations
+# 5: Id
+# 6: Percent
+# Default value for data of type int/long is 2 (bytes).
+#
+# See system/core/logcat/event.logtags for the master copy of the tags.
+
+# 62000 - 62199 reserved for inputflinger
+
+62000 input_interaction (windows|4)
+62001 input_focus (window|3)
+
+# NOTE - the range 1000000-2000000 is reserved for partners and others who
+# want to define their own log tags without conflicting with the core platform.
\ No newline at end of file
diff --git a/services/inputflinger/dispatcher/InputDispatcher.cpp b/services/inputflinger/dispatcher/InputDispatcher.cpp
index 46f6f44..959eeea 100644
--- a/services/inputflinger/dispatcher/InputDispatcher.cpp
+++ b/services/inputflinger/dispatcher/InputDispatcher.cpp
@@ -62,6 +62,7 @@
 #include <binder/Binder.h>
 #include <input/InputDevice.h>
 #include <log/log.h>
+#include <log/log_event_list.h>
 #include <openssl/hmac.h>
 #include <openssl/rand.h>
 #include <powermanager/PowerManager.h>
@@ -104,6 +105,10 @@
 // Number of recent events to keep for debugging purposes.
 constexpr size_t RECENT_QUEUE_MAX_SIZE = 10;
 
+// Event log tags. See EventLogTags.logtags for reference
+constexpr int LOGTAG_INPUT_INTERACTION = 62000;
+constexpr int LOGTAG_INPUT_FOCUS = 62001;
+
 static inline nsecs_t now() {
     return systemTime(SYSTEM_TIME_MONOTONIC);
 }
@@ -1028,7 +1033,9 @@
     target.inputChannel = channel;
     target.flags = InputTarget::FLAG_DISPATCH_AS_IS;
     entry->dispatchInProgress = true;
-
+    std::string message = std::string("Focus ") + (entry->hasFocus ? "entering " : "leaving ") +
+            channel->getName();
+    android_log_event_list(LOGTAG_INPUT_FOCUS) << message << LOG_ID_EVENTS;
     dispatchEventLocked(currentTime, entry, {target});
 }
 
@@ -1266,6 +1273,8 @@
     ALOGD("dispatchEventToCurrentInputTargets");
 #endif
 
+    updateInteractionTokensLocked(*eventEntry, inputTargets);
+
     ALOG_ASSERT(eventEntry->dispatchInProgress); // should already have been set to true
 
     pokeUserActivityLocked(*eventEntry);
@@ -2417,6 +2426,73 @@
     traceOutboundQueueLength(connection);
 }
 
+/**
+ * This function is purely for debugging. It helps us understand where the user interaction
+ * was taking place. For example, if user is touching launcher, we will see a log that user
+ * started interacting with launcher. In that example, the event would go to the wallpaper as well.
+ * We will see both launcher and wallpaper in that list.
+ * Once the interaction with a particular set of connections starts, no new logs will be printed
+ * until the set of interacted connections changes.
+ *
+ * The following items are skipped, to reduce the logspam:
+ * ACTION_OUTSIDE: any windows that are receiving ACTION_OUTSIDE are not logged
+ * ACTION_UP: any windows that receive ACTION_UP are not logged (for both keys and motions).
+ * This includes situations like the soft BACK button key. When the user releases (lifts up the
+ * finger) the back button, then navigation bar will inject KEYCODE_BACK with ACTION_UP.
+ * Both of those ACTION_UP events would not be logged
+ * Monitors (both gesture and global): any gesture monitors or global monitors receiving events
+ * will not be logged. This is omitted to reduce the amount of data printed.
+ * If you see <none>, it's likely that one of the gesture monitors pilfered the event, and therefore
+ * gesture monitor is the only connection receiving the remainder of the gesture.
+ */
+void InputDispatcher::updateInteractionTokensLocked(const EventEntry& entry,
+                                                    const std::vector<InputTarget>& targets) {
+    // Skip ACTION_UP events, and all events other than keys and motions
+    if (entry.type == EventEntry::Type::KEY) {
+        const KeyEntry& keyEntry = static_cast<const KeyEntry&>(entry);
+        if (keyEntry.action == AKEY_EVENT_ACTION_UP) {
+            return;
+        }
+    } else if (entry.type == EventEntry::Type::MOTION) {
+        const MotionEntry& motionEntry = static_cast<const MotionEntry&>(entry);
+        if (motionEntry.action == AMOTION_EVENT_ACTION_UP) {
+            return;
+        }
+    } else {
+        return; // Not a key or a motion
+    }
+
+    std::unordered_set<sp<IBinder>, IBinderHash> newConnections;
+    for (const InputTarget& target : targets) {
+        if ((target.flags & InputTarget::FLAG_DISPATCH_AS_OUTSIDE) ==
+            InputTarget::FLAG_DISPATCH_AS_OUTSIDE) {
+            continue; // Skip windows that receive ACTION_OUTSIDE
+        }
+
+        sp<IBinder> token = target.inputChannel->getConnectionToken();
+        sp<Connection> connection = getConnectionLocked(token); // get connection
+        if (connection->monitor) {
+            continue; // We only need to keep track of the non-monitor connections.
+        }
+
+        newConnections.insert(std::move(token));
+    }
+    if (newConnections == mInteractionConnections) {
+        return; // no change
+    }
+    mInteractionConnections = newConnections;
+    std::string windowList;
+    for (const sp<IBinder>& token : newConnections) {
+        sp<Connection> connection = getConnectionLocked(token);
+        windowList += connection->getWindowName() + ", ";
+    }
+    std::string message = "Interaction with windows: " + windowList;
+    if (windowList.empty()) {
+        message += "<none>";
+    }
+    android_log_event_list(LOGTAG_INPUT_INTERACTION) << message << LOG_ID_EVENTS;
+}
+
 void InputDispatcher::dispatchPointerDownOutsideFocus(uint32_t source, int32_t action,
                                                       const sp<IBinder>& newToken) {
     int32_t maskedAction = action & AMOTION_EVENT_ACTION_MASK;
diff --git a/services/inputflinger/dispatcher/InputDispatcher.h b/services/inputflinger/dispatcher/InputDispatcher.h
index 0c3ea36..1980435 100644
--- a/services/inputflinger/dispatcher/InputDispatcher.h
+++ b/services/inputflinger/dispatcher/InputDispatcher.h
@@ -48,6 +48,7 @@
 #include <deque>
 #include <optional>
 #include <unordered_map>
+#include <unordered_set>
 
 #include <InputListener.h>
 #include <InputReporterInterface.h>
@@ -323,6 +324,11 @@
     // Dispatcher state at time of last ANR.
     std::string mLastAnrState GUARDED_BY(mLock);
 
+    // The connection token of the channel that was last interacted with.
+    std::unordered_set<sp<IBinder>, IBinderHash> mInteractionConnections GUARDED_BY(mLock);
+    void updateInteractionTokensLocked(const EventEntry& entry,
+                                       const std::vector<InputTarget>& targets) REQUIRES(mLock);
+
     // Dispatch inbound events.
     bool dispatchConfigurationChangedLocked(nsecs_t currentTime, ConfigurationChangedEntry* entry)
             REQUIRES(mLock);