Opinions of this girl Watch
This was the first time we had a conversation with each other: We were having a very good conversation - she didn't seem shy at all. When the cheese did fall out of her sandwich, she started sweeping it off the table, with her hands, while making a quiet (but audible) sound that wasn't laughter; I didn't even notice the cheese until she did that. I then asked her "Hey, what's that?", in a joking manner, and her reply was "I was trying to hide it from you" (while looking down on the table in a shy manner).
We became friends after that, but now we are no longer friends. I am asking this question for a specific reason. I want to hear opinions about the behaviour.
Some girls however get shy and will find it embarrassing but i guess it's different to who the other person is that she's with. If you're physically attractive in her eyes, she might've just done that because she was shy and didn't want to give off a bad impression, i.e. she wanted things to run smoothly.
It's not really something you should think about too much, the behaviour is normal with some type of girls. It's not odd behaviour not is it something you should worry about.
Do not overthink about certain matters similar to this, it'll drive you insane.