He gives her a quick glance then causally looks at his watch for a moment.
The woman notices this and asks: "Is your date running late?"
"No", he replies, "I just got this state-of the-art watch, and I was just testing it."
The intrigued woman says: "A state-of-the-art watch? What's so special about it?"
The cowboy explains: "It uses alpha waves to talk to me telepathically."
The lady says: "What's it telling you now?"
"Well, it says you're not wearing any panties."
The woman giggles and replies: "Well it must be broken because I am wearing panties!"
The cowboy smiles, taps his watch and says: "Damn thing's an hour fast."