Classic gifts for men to give to women are flowers, candy and jewelry. Women can give men nice things like clothes, but many times they understand that men are most happy when the present is sexual. Many couples like to exchange sexy things like underwear. Valentine's Day is the time to express your love. You can choose your own way to do it.
Couples go out to nice dinners and have private time alone with each other.
Even if you don't give gifts, you can still show the person you're with you love them simply by spending time with them. Again, couples choose to celebrate this holiday in many ways.