Most likely, no one noticed any of this. Everyone is usually so wrapped up in themselves and talking to the other people around them that they don't really notice what anyone else is doing. And I'm sure you didn't humiliate yourself.
Once, at a volunteering orientation event, I accidentally insulted a woman so badly that she left the room in tears. People noticed that. As long as there were no tears, you're probably fine

But my hand gestures I realized were extremely off. Usually people don't clench their hands in a grasping motion and start shaking them around. I only noticed this after the fact that it looks like I'm strangling someone.