He was as suave and gentle in manner amongst the humbler sort of company as in the presence of royalty itself; and his clear glance passed quickly from face to face as he talked, as though he were secretly taking the measure of men, although his languor of manner never varied.
More than once, as he walked hither and thither through the rooms, had Tom's glance crossed his.

Possibly it was the young man's great height which took the eye of the soldier in the midst of this crowd, where smirking fops and bending courtiers predominated.

Tom could not be accused of bowing or smirking.

He remained the whole time leaning back against the wall in the same place; his face grave; his eyes following the movements of this or that person; his lips silent, because he could not frame them to the jargon of tongues and the stilted phrases of the day, and besides he had no acquaintances in this gay throng, save only Lord Claud himself.
Tom was looking in some curiosity to see if Lord Claud was acquainted with the Duke.

He had never said so; but then Lord Claud was not given to boasting, and had already surprised Tom by the number of his notable acquaintances.