When you eat a lot of food usually after a holiday or something
You could say something along the lines of:
"Hey, Friend, what's so good about weed? Why are you always smoking it?"
If he's smoking it for medical purposes, then just drop it, but if it's illegal and he's doing it to "look cool", then I would further ask questions about it.
One exercise that should be included is stretching before and after
B. agility is a skill related component of fitness.