Boys really don't care much about their birthdays, but when it comes to their zodiac year, they still have to celebrate their birthdays to cheer themselves up. Since he is a very proud friend, of course you have to celebrate. Give him a small gift. Here are some suggestions:
First, give him some common gifts that boys like, such as a watch or a ZIPPO lighter. Boys will definitely like such manly gifts.
Second, give him a creative gift, make him a real-life doll, which can be made into a funny look, such as Superman or a cartoon character. I believe it will make him laugh non-stop and increase the atmosphere of the party.
Third, give him a gift he likes. Maybe you will play ball or football together, so you can give him a piece of equipment. Or if he likes games, just give him the latest games.