This is a very mobile sign. He loves surprises and pleasant surprises. But they rarely manage to please. To understand what gift to give a Gemini, you need to thoroughly understand his qualities, preferences and hobbies.
Men born under this sign are vulnerable with a very specific character. Most often they are called the person-mood. This is a very complex sign and requires a special approach. They do not tolerate conservatism and are contradictory in nature. Gemini are very charming and have a bright charisma. These natures are so versatile and active that sometimes it is not clear where they get so much strength from.
It is worth giving them something spectacular, new and interesting. Gemini are not romantics - it complicates things. But the gift can be just symbolic, not necessarily too expensive, but creative. A mobile phone, laptop or computer accessories are what he needs.
Among these men, there are lovers of reading. They should be presented with books by contemporary writers or according to their taste. Since Gemini is very finicky, you can give a certificate for a trip somewhere or a parachute jump or a balloon flight. Since you cannot surprise these men with romance, you can take them with drive and speed.
To make your Twin happy, you need to think about how you will present the planned gift. The wrapper and the present itself should be in perfect harmony without any flaws. As an option - give a gift and congratulate in a comic form. The twins will appreciate it, and perhaps they will play along with you.