Do you trust people who say they are very confident?

Often I think one or both of two things about people who talk as if they are super-confident. This person’s confidence is misplaced, or this person is trying to hide their insecurities with puffed up bravado. In either case, I mistrust it. I guess I think true confidence doesn’t have to declare itself. If you can walk the walk, you don’t have to talk the talk. If you talk the talk, you probably can’t walk the walk. Therefore, if you declare it, it can’t be real.