2. He is constantly looking at you.
“One day, I noticed that our eyes meet often. So I gazed back at him and his face started to flush before my eyes!” recalls one woman in her 20s. This is a relatively easy-to-read sign that he’s interested in you. The challenge is what comes after that. An introverted man may not know what steps to take next, and things may not develop any further. In that case, be ready to step up your game and make a move yourself.