doing PMs is a good start as well, but i think the lack of response is just because they've already been bombarded with enough PMs already so trying to find a way to engage them without giving off that annoying "i just wan sum fuk" vibe is going to be your ultimate goal and something you'll have to try out and make your own style of it. Talking in public chat is also a good way too.
gifs from old public released scenes. IMO they were pretty good. *note if this is not allowed,please pm me and I'll remove immediately