really? if you are a good guy and have gale early on he shouldn't be any problem. just pay attention and talk to him whenever you have the ! mark on his head. Shadowheart is more complicated, but basically every time she approaches you, you have to be very "means business" guy and say how much you want to find a healer. also, there are two locations you can go with her (at least two that I know of) which will trigger some scenes with her.
I never got wyll happy enough to make him wanna bone me. and about Laezel, she is also quite difficult.
Astarion just needs attention. every time something happens in camp (meeting a devil having a dream) talk to him first. also Astarion is the only one who approves using your tadpole powers so if you want him you should use them all the time and do everything the dream girl\boy asks you to do.
What about Lae'Zel? It's funny how she is seemingly the hardest to romance when she has no concept of romance in the first place.
