charm(n. & v.)
Monalisa's smile is one of her charms.
Linda's smile charmed everyone.
do sth.with one's eyes closed
Bush has done it so many times. he could do it with his eyes closed.
This is John speaking.
May I speak to John? 我能和约翰说话吗？
Yes, this is John speaking. 我就是约翰。
(Yes, it's John.)