Feeling more self confident makes a person into a better salesman.

1. You’re so right.
2. Don’t I know!
3. That’s a good point.
4. I’ll vouch for that.
5. That might have something to do with it.
6. It certainly seems that way.
7. I know what you’re trying to say.
8. That’s as plain as day.
9. I’ll go along with that.

Feeling more self confident makes a person into a better salesman.