How To Capture The Most Interest From Girls

While some guys may have no trouble at all getting a date and making a good impression in order to get a chick in the sack, often times the hardest part is figuring out how to capture the most interest from ladies in the first place. From what I've been told, not only is this true when you're trawling at a bar or a club, but even more of a problem on sex dating sites. There are tons of guys online, so how does one go about reeling in a chick for some casual sex?