I was looking for a woman who did a great presentation. While at one of the breaks, I thought I spotted her (dark square glasses, cute haircut) and called her name out and went up to her. Well, nope, it turns out that person was Carissa and I was looking for Christina. However, Carissa, as eager to meet a new friendly face as I was. She and her partner Manos stopped, and we talked for about 10 minutes. They own Circle D Design in Ann Arbor, she does usability work...etc. Voila! One more stranger is now a frient/colleague/someone I can smile and nod at during the conference and perhaps have a business relationship beyond that with them one day. It's almost too easy.
After this encounter I was joking with friends about how funny and easy it was. We compared it to a guy trying to pick up a gal in a bar, "Haven't I met you somewhere before?" Apparently, it works at conferences too. Try it!