READ the verbs; DO what they ask

I said it before and I'll say it again. The best hint I can offer for the Free Response Questions on the AP exam is to

read the verbs and then do what they ask you to do.

If you're asked to explain, explain; if you're asked to describe, describe. Don't describe when you're asked to explain. If you're asked to compare, compare. Don't simply describe one of the things you're asked to compare.

Do what you're asked to do.

Do it as well as you can.

Good luck.