Every thing declared it; his own attentions, his father's hints, his mother-in-law's guarded silence; it was all in unison; words, conduct, discretion, and indiscretion, told the same story.

But while so many were devoting him to Emma, and Emma herself making him over to Harriet, Mr.Knightley began to suspect him of some inclination to trifle with Jane Fairfax.

He could not understand it; but there were symptoms of intelligence between them--he thought so at least--symptoms of admiration on his side, which, having once observed, he could not persuade himself to think entirely void of meaning, however he might wish to escape any of Emma's errors of imagination.

_She_ was not present when the suspicion first arose.
He was dining with the Randalls family, and Jane, at the Eltons'; and he had seen a look, more than a single look, at Miss Fairfax, which, from the admirer of Miss Woodhouse, seemed somewhat out of place.

When he was again in their company, he could not help remembering what he had seen; nor could he avoid observations which, unless it were like Cowper and his fire at twilight, "Myself creating what I saw," brought him yet stronger suspicion of there being a something of private liking, of private understanding even, between Frank Churchill and Jane.
He had walked up one day after dinner, as he very often did, to spend his evening at Hartfield.