The sexual preference bands suggested on the comments page would make things a bit easier. @Jeff I don’t know about the swing but I’d guess it’s like anything else, if they don’t brush you off or tell you to do one you’re in luck.
Maybe you should go with someone or check out the 52 cruise listing on squirt to see who is in. I’ve been a few times and I still have trouble knowing if or when someone is interested or just figuring out how to make the first move.
There’s no telling how full it will be, if you aren’t interested in someone just politely say no and there are free condoms in all the private rooms but whether or not you use them is between you and the other guy. Hope that helps.