For your senior’s birthday, you can give him gifts based on his preferences. If he likes sports, you can give him branded sportswear, such as sports shoes, sportswear, and knee and wrist guards. If he likes playing basketball, you can give him a collectible basketball.
Or give him a gym membership card so that he can exercise well, which is healthy and meaningful.
If he likes research, give him a model that he can assemble by himself, preferably one that uses solar power, so that he can study it well. If he is an elegant type, you can still consider giving him books (it is best to see what type of books he likes to read), table decorations, pendants, etc., which should be more suitable for him.
If he has a girlfriend, you can also consider giving him couple gifts. Couple color-changing cups, couple backpacks, couple mobile phone chains, and couple watches are all good choices.