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How to buy a gift for a teenager
Ask about their interests.
Find a chance to get to know the teenager you are buying the gift for. Ask them about their interests and look for clues.
Ask what they like to do on the weekend, what they are passionate about, or what their favorites are. Also, take note of their style, i.e., what they are wearing, how they talk, and how they carry themselves, to clue you into what kind of person they are.