Sign Language Cheat

Only works with multiple choice exams, and requires a friend and some planning.

1. Get your friend's attention in a predetermined way (e.g.: coughing, whistling, knocking, stretching, etc.).
2. Tell them the number of the question you are stuck on by using your fingers on one hand, e.g. "one" by sticking out your index finger, immediately followed by "two" by sticking out your index and middle finger together would mean question #12. You can do numbers greater than 4 by using your thumb to denote a plus sign. For example, index-middle + index-middle-ring + thumb + index-middle-ring-pinkie = question #27.) In response, your friend can give you the answer to the question by showing you his thumb (A), index (B), middle (C), ring (D), or pinkie (E) finger, or by placing their pencil in a predetermined position for each answer.
3. If you're worried that the sign language could result in some miss communication, try asking the friend beforehand to alert you (via a subtle noise like a foot tap) each time they finish a question so that you don't have to worry about which question they're answering. If the friend is far away, tell them to sound out the answer to each question as well because you probably won't be able to tell him/her which questions you need the answers to. However, this works up close as well, since you can just follow the friend along with his/her test without really having to worry about looking up. However, this only works on multiple choice tests unless you develop some kind of numerical tapping/sign system. Also, if the friend is loud enough, multiple people can benefit from his/her answers. The only problem with this is that it can be rather conspicuous and your friend will go down with you if you get caught, or worse, only the friend will get caught unless he/she tells on you.