Five Things to with a Friend's Book

1. Sit on it. Trust me their reaction will be hilarious.
2. Hide it from them and once they notice it's missing keep it away from him/her. You should probably have a group of people for this.
3. Go into the opposite gender of your friend's bathroom. So if they are a girl then you have a person take the book into the boy's restroom and just stand in the doorway but out of reach from that friend. The person going into the bathroom should of course be a guy in that case.
4. Have everyone sit on the book XD
5. Open it and pretend to read part of it. Then be like OMG! I can't believe blah blah blah happens.