He sipped at his drink to give himself time to think.
He sipped at his wine then set the glass down.
He sipped at coffee that must have been cold for an hour.
We both sipped at our wine and said nothing for some long minutes.
She held a cup in one hand and sipped at it.
He sipped at the tea and looked around the kitchen.
Instead he reached out and sipped at his small glass of water.
He sipped at his coffee, then put an arm around her.
I sipped at the wine until he ran down a second time.
She sipped at her water and turned back to me.