LOL! Actually, I'm 28, hot, and tuned in. Jeez, Nomo -- trying to age me a little. Where did you get such an idea?
I think Nomo's pretty spot on, actually, regarding being "tuned in". I really see a lot of it being about attitude/confidence for me (of course, looks, age, and money certainly don't hurt!). Seriously, it's just the vibe that you send out. Once I began getting in better and better shape, detached from my W, and hit on a few times, I began to realize more and more that I have become a new commodity that is hot on the market, and began to feel really good about myself again. My confidence soared, and I began semi and full on flirting with women in all situations throughout the day without any expectations at all (just did it simply because I could and felt like it). Heck, I even got hit on by a hot, recently D'd mom at the dollar store last week (and I didn't even do anything -- she initiated it). It was crazy! Anyway, there's no more fear of rejection (which was bad deal for me previously), self-consciousness, etc. I just let it flow, and it feels really good!
Be confident and funny, but not overbearing. When your vibe comes across as happy and flirty but without force or a neediness/hope to it, it is an absolute gold mine! Many available women can't shake the scent of a man like that. They become curious because he is content with himself -- and THAT is very alluring. It's what Michelle has been talking about. That happy, confident, fun man is attractive. But you have to really BE it -- it can't be forced, or it is as transparent as saran wrap. That's how I see it anyway. And for me...
Jeez, Nomo -- trying to age me a little. Where did you get such an idea? 
