She didn't sound very interested in this line of conversation.

He finally sounded genuinely interested in what I was saying.

He actually sounded interested in her answer, which was more than she could say about any other male she'd ever known.

Whenever I call up for a job, they sound interested.

If the customer sounds interested in what you have got to offer, ask for a meeting to discuss things further.

Only at the end did he begin to sound interested in his own words.

She sounded more interested in the answer than afraid of what it might be.

I asked, trying to sound naive and interested in the story.

She tried to sound interested, but her smile was mechanical.

Stewart sounded interested in running more of that race than this one.