Nothing is more frustrating than waiting for someone to notice you. A simple hello, nod of the head, eye contact or a brief comment will let the person know that you have seen them.
Watch your non-verbal cues.
HELPFUL HINT:
Your body language can give you away. It’s easy for someone to tell from the way you are standing, for example, if you are saying, “Welcome, I’m open for business” or “Go away, I’m closed for business.”