How Do You Tell A Not So Close Friend He Has Body Odor?

First go out and buy him some deodorant, soap and perfume. Then go straight up to him, give him the items and tell him "Dude, I'm sorry to tell you but you STINK and you really need to take care of yourself" I think he would really appreciate it. It's better that it comes from you than from a random person on the street. If I smelled bad I would want my friend to tell me, honestly.