I feel this way is more complicated as in sneaking the phone. it seems harder to do. I am a more work smarter not harder. The most practical I can do magic. You could make yourself less noticable and not stand out. I am very introverted and some days I just don’t want to talk to people.
Which would have me ask to help me study more effectively in a short amount of time. (Paimon would be good for this because he can help with natural ability because I feel he would be against cheating. He called me a bum when I was trying to cheat at something when it was my ability to do well 
)
If the outcome of the test score could be better out of an average. Let’s say you know you could get a B get someone to distract the other test takers during the test or give them nightmares or sexy dreams (succubi or incubi depending on the target) so they don’t get sleep. They don’t do well so it makes you look better. Or influence the staff member that will be grading.