Only one guy has ever been able to perform this feat with ease, and that's the Fonz. The other approach is to manufacture something gimmicky. This is equally creepy. Nevertheless, if you are going to try for something flashy, I still think the old ways work best. That's why I've taken up jousting.
Women dig a guy who'll kill someone over a handkerchief.
I know it's a little unusual, but it makes a date to Medieval Times more interesting. You can also serenade a girl, but only if you play the proper instrument. You can try a clarinet, but only if you take your retainer out, and stop acting out Monty Python scenes with your Star Wars action figures long enough to learn a good song. Also, the harmonica ditty you picked up in prison is a no-no. A guitar is by far the sexiest instrument.