Our two friends were aruging/flirting, and as they were paying attention to each other we both caught each other looking at each other. I looked at him and i saw he was looking at me and we both looked away. Then I looked back up again, and we looked at each other for about 3 seconds, and I smiled at him and looked down. Do you think this is a clear sign that I like him. What does it mean when he is looking back at me?