The Exclamation Point option can be stuck to the communications wheel of your Ninjala loadout.
If you want your character to show this Sticker in battle, press up on the d-pad and select it from the communications wheel.
To switch around the Stickers on your communications wheels, go into the Closet and then the Communications menu.
‘Exclamation Point’ Official Description
“A Sticker with an exclamation point. For when you notice something, or want to be noticed.”
‘Exclamation Point’ Appearance
Use the Exclamation Point Sticker in Ninjala to show shock, surprise, or just to catch the eye of other ninjas.