If you are head over heals love with a girl definitely you would want to know if she likes you or not. Most Guys find women a mystery. But knowing the interest level of the girl is very important if you want to take a relationship forward or to decide if you are wasting your time on her or not. If the Man knows that the Woman is interested in him it would also give him the confidence to ask her on dates and more! However, knowing her interest level may not be very difficult if you watch her behavioral pattern and body language when you are with her. If you find that she is not interested in you it is time to move forward or cut your losses and move on to the next one.