ambidextrous     Ambidextrous means that you are able to use both hands efficiently. It means that you can write with both hands. That's at least part of it.
Surprisingly, perhaps, itâs almost impossible to smell your own bad breath. Youâve probably tried cupping your hand in front of your face, exhaling through your mouth and then sniffing for the odor that others find so offensive.
Yes, especially if you smoke regularly, you will have nicotine stains on your teeth and your breath will smell. http://wiki.answers.com/Q/Can_a_dentist_tell_if_you_smoke.