3. Chew on your arm until someone notices.
4. Change seats every time the teacher turns his/her back.
5. After the teacher explains something, laugh really loud and say "Oh, now I get it!"
9. When the teacher calls roll, after each name scream "THAT'S MEEEEE!!! Oh, no, sorry."
10. Page through the textbook scratching each picture and sniffing it.
15. Ask for an extra copy of each handout, for your invisible friend sitting next to you.
17. Stand to ask questions. Bow deeply before taking your seat after the teacher answers.
20. Get everyone in the class to start humming softly, and gradually hum louder.
21. Have a group of people in different parts of the classroom in on the hum scheme. To work it, one person hums until the teacher looks at them, whereupon someone else starts humming and the accused opens his mouth as says "I wasn't humming!". Rinse and repeat until teacher loses mind.
22. At a completely random time, put up your hand to ask a question. When the teacher picks you, ask a question about a different subject and pretend you thought it was that class.
23. Put your hand up, and when the teacher acknowledges you, just say "I'm pointing at the ceiling".
36. Draw a smiley face on a piece of paper, and talk to it.
49. When you have a 2000 word essay due, hand in two pictures related to the topic. After all, a picture is worth a thousand words, right?
54. When a teacher explains something, raise your hand and say "I don't get it". They'll say, "What don't you get?" You look at the handout or notebook paper you have and say, "How do they make a really big tree into this thin piece of paper?"
Did all of these already.