Given the context of the discussion is about lacking social cues, its not possible to know the social setting to give you specific advice.

However, I would suggest considering if the ‘making fun’ is in casual conversation or truly adversary.

In casual conversation of someone making jest about your lack of speaking, just smile and say you are having a good time listening and hanging out.

If they are actually making fun of you, never associate with those people again, they suck

Emphasis on that last part. Hurt people hurt people, don’t let them hurt you too.