Not being girly is a good start. Nothing better than a girl who rocks power tools and doesn’t care about a bit of sweat and grime. Even if that’s not you, I presume that you at least aren’t overly concerned with fashion and gossip and all of those things that send a knot of nausea and dread into the stomach of any guy worth his salt. Being fun to hang out with, and having a good sense of humor and a strong intellect to back it up and carry an interesting discussion, are musts; in any decent relationship, you’ll be spending a lot of time together, so that time had better be good. In my case, I also require that the girl have a practical outlook and have the habit of being rational rather than emotional. If you’ve got all of these qualities, the physical attraction will probably work itself out. All of this varies between guys, of course, but I think that a lasting relationship is more likely to come from guys who look for “friendship” qualities like the ones I gave, rather than being romantic; romance fades, but the trials and joys of everyday life together remain.
Oh, and if she can beat me in badminton: sexay!