Most Helpful Guy
Guys like him, they tend to be the best guys you will ever date. Trust me, take the time to figure out this boy because there is more that meets the eye than some nerd. Go say hi and smile, maybe touch him gently and briefly. Just ask questions and show you are interested. and after a few interactions ask for his number and he will figure it out. Good luck :) Don't do that bullshit where girls try to act uninterested and try to make the guy figure it out. That really pisses guys off. You sound like a nice girl, good luck again :)
Most Helpful Girl
If its computing you don't even need to think how to approach. Nerd are always up for solving a computer problem. Take a problem which you can already solve but act like you can't. This is just to make sure you dont sound dumb in front of smart nerds. :)
Computing problems are really a way to involve nerds. :) I have only nerds around me so I can tell it.