Riding? Being on top? 💦😈

Okay so me & my boyfriend have had sex a few times before & we have really great sex but I wanna "ride" him, like I want to have control & be on top. He does a lot for me so I think it's my turn to do something for him. Fair right? It's just I've never done it before & I was just wondering if anyone could tell me how or give me tips?