It can be," he replied.
He looked as if he were quietly amused, but dissociated.

None of the people in the box were quite real to him.

He was not really amused.
Julia found him dull, stupid.

Tanny also was offended that he could not _perceive her_.

The men remained practically silent.
"You're a chap I always hoped would turn up again," said Jim.
"Oh, yes!" replied Aaron, smiling as if amused.
"But perhaps he doesn't like us! Perhaps he's not glad that we turned up," said Julia, leaving her sting.
The flautist turned and looked at her.
"You can't REMEMBER us, can you ?" she asked.
"Yes," he said.