To react to a chat message:
1. Tap and hold the chat message you want to react to.
2. Tap a reaction.
Tap the reactions directly below a message to see the full list of who reacted to it.
To undo your own reaction, tap and hold the chat message you reacted to or tap the yellow face icon, then tap the same reaction again.
Note: You cannot remove your friends' reactions.
Let us know if we can make it better.