She lifted it to her lips and took a cautious sip.

She took a cautious sip, put down the cup, and added another tablet.

He took a sip, cautious at first, but could think of no reason why the fellow might poison him.

She sat down across from Sharon and took a cautious sip.

Bones sat at an empty table and took a cautious sip.

Rod took a deep breath, then a very cautious sip.

He took a cautious sip, and smiled in spite of himself.

Jill took a cautious sip, then a much bigger one.

She took another cautious sip; it really was very nice.

Andrew peered into his coffee and took a cautious sip.