The next thing anyone will see on your profile is your tag line. For those who don't know, a tag line is the one-liner that introduces you to the other singles surfing the online dating sites. On most online dating sites, the tag line is found at the top of every dating profile and next to everyone's photo and handle when appearing in a search list. Some of the newer, younger-focused or speed dating sites ask only for a tag line and nothing else - even more the reason to ensure yours is well crafted.
Tag lines are very similar to handles, in that they offer a very short space with which to impress or attract someone. They differ in that they can be easily changed and provide a bit more space to describe whatever it is you feel relevant.
Quotes from famous people that you admire, agree with or want to emulate are quite popular in tag lines, as are truisms and lines from famous movies or songs. The problem with using any of these kinds of pieces as your tag line is that others are probably thinking the same thing. Peruse a couple of dating sites and you'll quickly see what I mean: "I'm the one your mother warned you about," is still a favorite after more than a decade of use, and many online daters steer clear of anyone using this tag line because of it.
So what can you use in your tag line? Try for thought-provoking, unusual and/or intriguing one-liners. Light and fun works well for dating or friendship-based profiles, but you can be a little bit more serious for relationship-oriented profiles. Racy or adult-natured tag lines are only appropriate on adult dating sites.