The music  was moving up a notch from "foot tapping" to "lets hit the floor" .

She was looking around for him, wondering what kind of a dancer he would
turn out to be, IF he asked her to dance. He was standing by the bar, a
drink in one hand and a cigarette in the other, talking to some
friends, not looking her way. She didn’t know whether to swallow her
pride and ask him ,or to give him the silent treatment later. Before
she could make up her mind, a friend of his asked her to dance, and she
said “Yes”. They  had just begun to dance, when  he reached
them, smiled at his friend and cut in , to dance with his wife. She
couldn’t stop smiling after that because she was dancing with him.

They had been married for four months and this was their first dance. She
felt as if this was how things were going to be between them, that he
would probably nevertake the first step unless pushed, but she was happy that  he would..... eventually.

She was both right and wrong, for , you see, although he rarely asked her
to dance , they were never missing from the dance floor when either of
their favourite songs were playing.