Tips?

So, I'm kinda inexperienced in the whole sex department, like, I've read erotica and seen porn and such, so I know the actions+dirty talk, but actually knowing what would please both parties is a little bit out of my league sense I've only had sex about 3 times. Me and my SO don't get too many opportunities to be alone together for any length of time sense we're both currently in high school and my mom is extremely religious and doesn't want me to have sex til I'm married ( too late for that but oh well lol). The reason I wanted to create a post though, is because I'm going to have to opportunity to be alone with him all day next week (we're going with a group of friends into town for Holloween stuff) and I want to be able to try something that'll blow his mind and make him think about it for weeks so that he's even more excited next time we can be alone. I really want to just make him happy and I would really love to have help with tips or stories on what to do and not do, any tips?