People who have seen your photo and know your name might notice you when you pick up two-dollar hookers in the seedy part of town.
Another useful hint: when said observers later mention this fact, it is not a convincing disavowal to state that you do not hang out in the red-light district “on a regular basis.”
(Hat tip to Zeno for providing this fabulous PSA. I note that Zeno is pseudonymous and does not have his picture on his blog.)