How to give best bj and hj? 💥

Ive been with my boyfriend for a quite a long time now, and i want to take things to the next level. Can anyone share the best tips on giving ur man the best head since I've never rlly done it before? 😅 the most annoying thing tho is, he doesn't even know himself what he wants when i do give him a hand job, i find it hard to please him as idk what he acc likes. So yh, pls drop some tips so my first try would be better than i hope it would be this Wednesday 😂😭 xx