1.   Robinson nudged the man in front of him and nodded a greeting as the man turned.

2.   The blond man had nodded a greeting to her, and Carol had been aware of his appraising gaze.

3.   He nodded greetings to Mary Ann and Michael and shook hands with Burke.

4.   Most give a quick dog shake to dispel water as they hop aboard and nod silent greetings to other passengers.

5.   They nod greetings.