Would you like to be a polite, thoughtful person? Then comment on the personal appearances of complete strangers. That's what you need to do.
And if you mention that someone you don't know is tall, hopefully s/he will hand you this card that will deliver a verbal rather than physical smacking.
-via Pleated Jeans
The other day I was at the 'orriblemarket looking at the second-hand food display when I noticed a pair of invasion barges pulling up beside me. I wear UK size 11 or 12, my wife wears UK3. These were bigger than mine by the same amount that mine are bigger than hers. The Squid (my wife) comes up to my heart - and that's about how far up I came on this bloke.
I tried not to look up - but did catch a sneaky peek in the reflection of the cabinet.
 That's what reduced to clear is called in our family.