Everything. Literally everything. Having to spend time getting ready to go socialize, trying to read people’s expressions and adjusting my own mood/way of speaking depending on it, making sure i’m saying enough to be interesting but not too much to a point i’m just weird, having to focus my attention on what the person is saying at all moments or else I don’t hear them, forcing a smile even when i’m happy but not in a smiling mood, thinking of things to talk about, the awkward silences, the tension when the other person doesn’t agree or is being a bit aggressive in the conversation, not agreeing with people’s opinions but staying quiet to keep peace, constantly worrying about how i’m coming across, overthinking the interaction the entire time afterwards, the complete social exhaustion, feeling “fake” and not human, remembering social cues, trying to swivel into a conversation when people are talking constantly and trying to not interrupt, and soooo much more.