looking approachable like @
Vanasiancpl said is key. Sitting up and checking out guys, eventually some will brave enough to approach, usually with a simple smile and " hello", if you reciprocate it will lead to some small talk and they will want to pull up next to you to get to know you better and see where it leads to. even when I went with a male friend, some of the guys at beach had no problem approaching. One couple I observed, even made it easier, she had a pineapple towel and swimsuit, sort of the we are swingers calling card and they did leave with two blackmen for what I guess was some fun back at a hotel.
