Is it a question: Can I sit here? How's things? Did you get here okay? Did you find us?
Or is it a statement: Hey, it looks busy in here. It was great to see your name on the TV last week. Thanks for sending me through that script.
The statement is much more powerful as it creates an instant energy and up beat feeling. What a great way to kick off a meeting. Exactly what that statement will of course changes every time. But when people look foward to meeting with you because they know it'll be positive and full of goodwill you'll know it is working.