How to respond to suggestions?

Positive:

You’re right. I should try that.

You think so? I’ll try that. Thanks.

I suppose/ I guess I could do that.

That sounds like a good/great idea. I could definitely try that.

Maybe you’re right. I’ll give it a try.

Negative:

I’m not sure that’s a good idea.

Ummm…I don’t know about that!

I don’t think that will work.