Spicing it up

How do you tell your boyfriend to spice things up? Like I go with the flow so if some guy is a freak I’m a freak and if he’s not then I’m not. Guess which one my Bf is? He’s not like he doesn’t talk he doesn’t pull hair he doesn’t choke he don’t spank he don’t do nothing and it’s really affecting my performance in the bed cause idk what he likes yenno. I want to talk to him but idk how to. I mean there’s some things I could do on my part but he’s just so blah like I wanna make love yenno but it doesn’t feel like it when we do. I just wanna be a freak but I can’t with him being so plain. Someone tell me what to do should I talk to him?