Hi, this is my second thread, I'm a shy guy which has left me extremely inexprienced in this department. The problem is I've had friends tell me such a such a girl likes me etc. but I'm too clueless to notice I really need help here because I don't know how to tell if a girl likes me or what to do if she does. Any advice?

Just view a person body language because it can speak louder than words. Look at how they talk and touch you and listen to the words that are coming out of there mouth.