fraternity summer recruitment

How does this work? Can any guy just walk around heritage on a night and pregame there and meet brothers? Do fraternities do day trips and stuff? Someone in my hall told me that ZBT did a day trip with buses to Bear Paw for the day for girls and guys who want to rush, I don't remember the name of the other fraternity (phi something) did a paintball trip with buses too? I want to meet the brothers of fraternities but I don't know many people because I'm from out of state. How do I get in on these trips?