His reply, however, was simply a casual nod.

He went away presently giving her a casual nod.

Pitt opened the cargo door and gave a casual nod.

A casual nod as he switched papers on his desk.

With a casual nod of the head, he decided that no triage mercy killing was required in this case.

In other cases, the presence of the book is no more than a sly, casual nod to the audience.

Captain Hallet gave her a casual nod; this was man's business and he disliked having a woman involved.

He gave each man a casual nod.

With a casual nod, he walked over to the door and opened it, leaving her alone and feeling oddly forlorn.

Nothing is prepared for, and people show up and disappear without explanation; characters are eliminated with a casual nod.