What is he most passionate about? Sports, video games, movies, music? Find something that he loves to do, and then personalize it. Sports: Buy him something related and arrange to go out with him either to a game, or ice skating, snowboarding, etc. Video games: buy him a game that you think you both might enjoy, or an extra controller to play along with him. Movies: buy him a DVD of a movie he loved this year, and a gift card for his favourite restaurant and then another gift card for the movie theatre so you can go out together. Music: this can be very broad. You could buy him a CD, iTunes gift card, musical instrument or computer composition/recording software, and concert tickets so you can both go see his favorite band.
Top it all of with a very personalized loving card
Tickets to a concert a nice leather jacket or some cologne try powerful by Lacoste very good smell or just say I love you & give him the biggest hug with all your heart & don't let go if none of that works out you should go out to eat at a very Special place look at the stars & just be enjoy life