Looking only at the motion of your eyes, she says, she will figure out something about your thinking. Glance left, for example, and up: clearly, you are searching for an image in your memory.
Now, searching for an email address, I ask, where do you look?
›› Find out what others tried to find email addresses: what worked, and what did not. You can also share your experiences trying to locate email addresses, of course.

An ace, clubs; a ten of clubs; a king and then a four, both clubs; another ace, spades.
Now, a pair of aces is nothing to be ashamed of. We're just one card shy of a flush, though, and this is poker, after all. Let's pretend — only in our mind and face, perhaps — we had, say, a six of clubs instead of the ace of spades: not a straight flush, in full, but a respectable hand.
We're "four-flushers" now, bluffing and swindling cheaply; it does not take a four-flusher to recognize another in email, though. It takes authenticated senders and Gmail, for example:
›› In Gmail, you can know for sure certain messages came from certain senders with the gold key authenticated sender icon.

An egg-shaped head with little hair, edgy features and a nose resembling a truffle, the stone that appeared in the 1930s also has a name and a number caved onto its face: "John Colter", "1808". Was the stone carved by the John Colter, former member of the Lewis and Clark expedition on a lone exploration of Jackson Hole, or was it a joke left by surveyors much later?
Hoax or relic, the Colter stone was found just west of the iconic mountain range we see here from the east:
›› Have the gorgeous Grand Tetons look down on your emails. (Windows Mail, Windows Live Mail, Outlook, Outlook Express)

"Gullible" is in the dictionary; "thin ears" is not.
It may be in Korean dictionaries, all right, where having thin ears means to easily change one's mind following hearsay and other people's opinions.
Now, you probably want Yahoo! Mail to turn a thick ear to people who pretend to be you trying access to your emails. Then, when you want to change the password guarding your account the ear should be thin, of course — and it is, if you know where to whisper and how:
›› Do you think somebody may have guessed your Yahoo! Mail password? Change it now, and then change and change again, to help keep your Yahoo! Mail account secure.