On a friend's pulse you can leave a reaction: heart, fire or laugh.
The rules
- One reaction per person on a pulse. Picking another one replaces the first.
- You can remove it any time while the pulse still exists.
- To react, you need to have posted your own pulse that day. Until then your friends' pulses are blurred.
What the person who posted sees
The list of who reacted and with what, plus the count for each reaction. They get a notification for each person's first reaction; later changes send nothing.
More than a reaction
Under the pulse there is also Reply: it opens the chat with that friend, and your message goes out with their pulse quoted above it. The message is end-to-end encrypted like any text message.