The names of your friends with which you are thoroughly familiar will
bring to your mind a clear visual impression. You can see the face
as soon as the name is mentioned, not of the few but literally of
hundreds of people. Learn to take advantage of this great series of
Name Pictures, which you can indelibly hitch to the Face Picture of
the stranger who chances to bear the same name. Use the same method
as before, see the two faces clearly, compare them to make the mind's
eye picture of the friend's face definite. Use motion, think, become
interested, and every other means to make a strong, lasting impression.