21.   Men also sniff the air.

22.   Nando sniffed the air and smiled.

23.   Nicholson, who plays a book editor, has paused beside a desk to sniff the air in lupine fashion while his secretary looks on with understandable concern.

24.   Next, Sol sniffs the air for the telltale aroma of coconut-scented sunblock and checks out his surroundings.

25.   Not that Austin was much better for the sensitive who sniffed the air Thursday and grimmaced.

26.   One does well, in those seasons, to sniff the air at night before retiring, and mark the direction of the wind.

27.   She sniffed the air.

28.   Sniff the air, and it smells like vinegar.

29.   Sniff the air.

30.   Something must be up, we tell ourselves, and sniff the air.