Mine doesn't have very good spacial awareness when I feed him. He'll nip at a pellet, miss, then spend the next few moments doing donuts around the pellet until he gets it, sometimes he ends up nipping his own tail by accident! It's like watching a baby trying to feed themselves for the first time and ending up with food all over their face
He also LOVES his thermometer and spends hours swimming up to it, nudging it and circling it. He seems to think it's his girlfriend because he also builds a bubble nest around it every day and sleeps beside it in his hammock. If I touch the thermometer he rushes to it's defence and bites my finger! The rest of the day is spend patrolling his tank. I swear these little guys have the best personality out of any fish!