1. Put on a dress, and then grab a banana, and smush it in your face, and then hide in the books section, and when you see someone reading, you come out and yell, "BANANA PRINCESS!" It will become sillier if you're a boy.
2. Hide in the play balls thing. And whenever someone passes, you say very scary and slowly, "I-I-I-I'mmmmmmg..... Ggggoooiiiiinnnggggg tttttooooo kiillll yoooouuuuuuuuuuuuuu......" or, "Iiiiiii'mmmmm goooiiiinngggg tttoo cccuuuuuuurrrrseeeeee yyyyoooouuuuu.." And throw the balls at children as they pass.