What I mean is.. that when someone gets bullied, maybe there could be an option to express your emotion, but remember that your character also has a brain of its own, so it could make a sad face or a thinking bubble and a sad face could be on it.
Another Example: I'm Sad:
I'm Happy:
I've Got an Idea:
I'm very very sad (Depressed):
.
I hope you like my idea!