Definition of "attentively"

'It's a very clean cut,' said the Rat, examining it again attentively.

1908 October, Kenneth Grahame, The Wind in the Willows, New York, N.Y.: Charles Scribner’s Sons

When Major saw that they had all made themselves comfortable and were waiting attentively, he cleared his throat and began

1945 August 17, George Orwell [pseudonym; Eric Arthur Blair], chapter 1, in Animal Farm […], London: Secker & Warburg