Is there a physical change just by looking at them and can tell if there interested in me?
Most Helpful Guy
There's no surefire way to tell because girls have different temperaments.
Some are fearlessly outgoing and will make it obvious they like you by chatting with you, smiling, laughing, and making eye contact. They will also gravitate towards you because you make them comfortable. This type of girl is simply amazing but not for guys who get jealous easily.
Then there are traditional girls that are accustomed to being approached and having the guy do all the initiating. They aren't shy or anything. They just expect the right man to come along and take charge. The only way to tell if this girl likes you is if you talk to her, ask her out, and listen to her response. There's no obvious clues she will give you.
Finally there's the shy introvert who won't reach out because she's afraid of getting hurt. She won't initiate conversation and she will hardly ever make eye contact. If you're looking for a positive sign, you won't get one. Ever. But there is one tell and only the bold can exploit it. If the shy girl is OBVIOUSLY ignoring you and CLEARLY fails to acknowledge your passes, she's afraid of you, therefore she may like you. Shy girls can talk to people they have no romantic interest in. So if you're stone walled, there's a reason for it.0