This question raised many times from Iranian girls (Persian girl) in school and college level. And on based on others experience they got some answers. The simple answer is Yes! of course!! you can tell by way acts even without speaking.
The other way to find out is to go on a date if the date goes well and you have chemistry then you will be a good match. Also It depends on the guy if he is a hot guy/ cool dude he will think he is the **** and ignore you and want you to make all the effort. If I was the guy and a hot Iranian girl was talking to me I would make effort to talk to her and get her mobile number. And Everyone loves hot Iranian girls, and hot Iranian girls know this.
