How do I use voting?
Sticky Notes have an additional little feature: voting! To add a Vote to a Sticky Note, open the Emojis and select Voting from a drop-down list. 
Figure 1: Voting
To cast a vote just drag and drop an emoji to the Sticky Note.
Figure 2: Casting a Vote
To remove your vote just click on it.
Figure 3: Removing a Vote
✏️Note: Make sure you're dragging the Emoji directly from the Toolbox onto the Sticky Note. If you drop an Emoji onto the Workspace and then onto a Sticky Note, it will remain an Emoji and won't count as a vote.