1.   He rubbed his thumb and forefinger together, waved his hand, and sat there.

2.   Mitchell touched the silverware in front of him, rubbed his thumb in the hollow feminine side of the teaspoon.

3.   He rubbed his thumb lightly against her nipples, which were prominent through the material of her nightdress.

4.   During one conversation last spring, he spent almost an entire hour nervously rubbing his thumb against the same spot on his right side.

5.   Payton rubs his thumb back and forth across his fingertips.

6.   They held hands under the table, and she rubbed his thumb.

7.   You walk your eye along it as you might rub your thumb across it, taking in the rises and falls, the canyons and precipices in miniature.

8.   Bush seemed tense, sitting straight in a wing-backed armchair, his hands clasped in his lap as he rubbed his thumbs and tapped his foot.