To act uninterested would have been suspicious.

It's tough work to blend in, to do your job at the same moment you are doing your best to act completely uninterested.

In some, the classmates acted bored and uninterested; in others, they were enthusiastic and supportive of each other.

David had acted uninterested enough that Guy turned to his own people and whispered, "That regional numbering thing."

Although she usually acts uninterested in his romantic advances, she shows on several occasions that she cares more for him than she lets on.

Maybe he should act uninterested in Chang as an employee.

Alternatively, simply shake your head, act uninterested and get into a conversation with somebody else.

If you're alone in an uneasy situation, act cold or uninterested, rather than threatened.

She presents him with a file labeled "Sunnydale" and an amulet that Buffy needs for a battle, but he still acts uninterested.

Donald acted uninterested but finally allowed himself to be persuaded after making a couple of insulting additional conditions for his return.