1.   The rare passersby hurried, emitting puffs of vapor from their nostrils.

2.   He gets some pretty chilly mail from Democrats, but the letters that emit puffs of sulfurous smoke are invariably from conservatives.

3.   On the front seat of the open-air vehicle Wright drove, his jacket emitted a puff of dust when he rearranged it.

4.   When the phone rings, a pre-selected puff will be emitted.

5.   It had since settled into its normal routine of occasionally emitting puffs of smoke.