If a post already has an emoji reaction, you can also react to that post with another emoji. To do this, click the smiley face icon beneath a message and select from one of the frequently used emojis. To select from the full array of emojis available, click the smiley face More emojis icon.
If you’d like to upvote another reaction or react using the same emoji, click on the emoji reaction beneath the message. Note that you can react to a post up to 20 times with different emojis. You can also remove your reaction by clicking on your emoji reaction beneath the message.
To view the voters of a post, hover over an emoji reaction. You will see the first names of up to 30 voters. After 30 names, it will show the number of others who used that emoji to react to the post.