Hang out with them, have fun with them, flirt a little, have a few drinks, maybe go out dancing with them and show off your moves, work your hot body.
Trust me, after that - if they're interested, they will make a move!
The key is to get them in their comfort zone. Guys are always worrying about impressing each other and "acting cool" - but if you're all drinking and having fun I can tell you that whole "one thing leads to another" happens pretty quickly!
They try to act cool, but they soon loose their cool if you work it right. Also I'm not saying be too easy or whatever.. You still gotta play hard to get or you'll look desperate.