Seconds

Some can neuter a cat in seven seconds.
Some can write a poem in under a minute.
Some can whip up a casserole in 10 minutes.
Some can spell your name correctly the first time.
Some can light all the candles in two minutes.
Some can learn a new dance routine in a half hour.
Some can hang a picture perfectly in five minutes.
What can I do?
I can smile for you in a nanosecond.