See someone you like? Just open your TAG App to see if their profile appears. If so, Tag them. If the person would like to meet you, they will Tag you back. Meaning you can go over and say hi and get to know each other right away, in real life. If they are not interested they wont know its you that tagged them. Its that easy. (Btw TAG stands for Technology Assisted Greeting - the tech is just there to help people to meet each other in real life.)