logo by chick

So about seven of us guys were walking back into the building today after having gone out for lunch. And as we got up to the main entrance, Katie, a young woman who works for another company in the same building, walked out the door, presumably heading out to her car in the parking lot. Now, Katie is about 24 years old and is extremely pleasant to look at. And today she was wearing a very nice little denim mini-skirt (emphasis on little). And as she passed our group of guys she looked up at Stew, one of our older, married, gray-haired engineers. She then smiled and said, "Hey Stew, how's it going?" To which Stew immediately blushed and mumbled something friendly in return.

Now what I want to know is, what's Stew got that the rest of us don't? And more importantly, how often is he giving it to Katie?