I'm a big student of body language, but there's one gesture I can't seem to find anywhere on the web or any expert talking about it. It's regarding the scratching of the side of the mouth. This typically happens when someone looks at you and immediately use their index finger to lightly scratch the side of their mouths between the jaw bone and the outer lip in that area. I have a feeling it means the person is 'curious' about something or judging in someway. I had a girl I Liked very much do this once and I had a feeling it was a good sign because I knew for sure she always liked me. If anyone has any input, please let me know, but I think it's a combination of someone being 'curious' and 'judging' in a beneficial way towards you that they like what they see.

Open to other suggestions. Thanks in advance.