Make eye contact.
This is one of the most important things you should do when meeting anybody for the first time, let alone a girl you are interested in. Steady eye contact suggests you have confidence. Make eye contact with her as soon as you begin to approach her. For example, if you’re coming from the other side of the room, establish eye contact as you are walking towards her. However, it’s important to not be creepy about your eye contact. Don’t forget to blink and don’t look at her as if you are trying to read her mind.