A great workout in a short period of time (Score 1)

I'd suggest kettlebells. 20-30 minutes of actual work 2-3 times a week will work wonders. He'll build whole body strength, increase flexibilty, and burn that wonderful Geek lifestyle paunch right off of him! Yoga is excellent as well. I attend Hot Yoga regularly, and the people are friendly but subdued. The women are hot, and the amount of interaction in the studio is limited. The health benefits are amazing. And of course, there's cardio and hiking! Getting out on a trail and meeting folks 1 or 2 at a time is a great way to get some activity and sun, thus hiding the Geek's true nature....