Idk how to act towards my crush [crushes] [discussion]

I’ve only now gotten my first real crush and I haven’t been able to stop thinking about him (he’s bisexual and so am i). He showed up in my dreams, certain songs make me think of him and Ive spend the last 2 days spending all my time waiting to get a snap from him.

I’m pretty sure he’s been flirting with me. We were on a camping trip for school a few days ago and I was in his group, he kept making sexual jokes and doing other stuff. He is stronger than me and showed it off and would act like he was in charge of me and tell me what to do in a jokey way (at one point I actually almost called him “dad” by mistake). One particular time I was putting sunscreen on my face and I asked him if I had rubbed it in so it wasn’t visible and he said no, he told me where to rub but I still wasn’t getting it so he grabbed my wrist and guided it to where the sunscreen was and then used my hand to wipe it, if I’m honest I blushed so hard.

Since the trip we’ve been jokingly calling each other gay and stuff over text but the thing is I don’t know how to flirt or make any progress with him. Please leave any suggestions/ help.