There was an awkward silence, during which Houdini sipped thoughtfully at his drink.

Charlan picked up his cup and sipped from it thoughtfully, not missing a beat.

Gosset poured himself another glass of brandy and sipped thoughtfully at it.

The President set the sandwich aside and thoughtfully sipped the coffee.

He took the cup and saucer and sipped thoughtfully for a moment.

Meanwhile, he remained at the punch bowl, watching the folks come and go and sipping thoughtfully.

He cupped his chocolate in both hands, sipping thoughtfully, then shook his head.

Merritt thoughtfully sipped his drink for a few moments, then looked over at Spence.

It appears my brother doesn't waste any time, she mused, then sipped thoughtfully at her drink.

Then he thoughtfully sipped his drink and stared at a point away from the main action.