Who needs friends when you have books eh? You have learned so much that "uuummm actually..." is how you enter most conversations, and it's rarely looked upon kindly. You're a genius and everyone should know it. If you take this feat, you gain the following features:
You gain +3 Intelligence at the cost of -2 Charisma.
You permanently have advantage on Intelligence checks and saving throws, but also have disadvantage on Charisma checks and saving throws.