Emoji window keeps appearing
Not sure if this is a High Sierra bug or something my niece did when she randomly hit keys on my Mac. I keep having the emoji window appear frequently and at random, to the point where it's becoming annoying. I click in a text field and it pops out, I switch apps and it appears on screen, I switch open windows within apps and it appears.
It seems everything I do makes the emoji window open and I've got fed up with having to close it all the time. Is there a reason why this is appearing and any way to stop it?
MacBook Pro with Retina display, macOS High Sierra (10.13), 2GHz, 8GB RAM, 256GB, 13 inch