You may want to see who has reacted to an announcement and with what emoji. That's why we've made it super easy to see who reacted to an announcement and how.
iOS/Android Mobile App:
Long press on an existing reaction (not the new reaction button) and a screen will appear with the names of everyone who reacted and how they reacted
Web App:
Hover over a reaction (without clicking) and the names of the members who reacted with that emoji will appear