You can lift free weights, use weight
machines or your own body weight
for resistance. Some popular resistance training
activities for men include pull-ups, push-ups, crunches, bench press, biceps curls, triceps extensions, squats and lunges. You can try modifications for push-ups by doing them from your knees or against a wall if you need to. If you are unsure of how to do a particular exercise, ask a trainer or google it.