One day I was in the elevator at work and I found myself next to this really tall guy. I'm not too tall myself, so I was taken a little bit with the height of this guy. I would have to say he was about 6"4 (192cm).
My way of dealing with this confusion was to blurt out a good natured joke as we did in the lift from time to time. So I said to him, "Hiii. Ummm. What's the weather like up there?" with a smile.
To which he immediately replied, "I don't know, check my thermometer".