with one's eyes open

As to being cheated with one’s eyes open, one does not complain—you expect it, and it is not worth while losing your temper merely for the sake of a few paltry centimes; and yet I felt that I had been done unfairly when, on asking a waiter for a cup of coffee noir, and giving him an English shilling, and particularly calling his attention to the value of the coin, he coolly treats it as a franc, and gives me change accordingly. 

A walk up Fifth Avenue in New York, from Madison Square to the Park, with one's eyes open . . . leaves an indelible impression of chaos that is certainly without form, if it is not wholly void.

This is truly being deceived with one's eyes open; to make dispositions before the eyes of men and not to keep them!

"At all events, I do not know a more delightful sensation than the sort of strange shiveriness which goes through one when one feels--heaven knows how, or why--as if one were suddenly casting a glance, with one's eyes open, into some strange, mystic dream-world."

One does not walk into a crevasse with one’s eyes open.”