Ive never met Luke, So I couldnt know if he smells or not. Do YOU think he smells? Does he bathe every day? Is his hair clean? If he doesn't bathe, or has dirty hair, he might smell bad. If you're a good friend you can talk to him and nicely tell him that he has a body odor problem, and offer to help him learn how to keep it under control with the right bath products, and deodorant