Its not the words, but who says them and what they mean by them. If a colleague or business partner said that to me (which has happened) - it usually ends up with me reducing them to little boys, lol.
When Tristan says it, I LOVE it. Its why I do this. Its a praise, an endearment, an acknowledgment that I have pleased him (that he likes it, that I have done a good job). For me they eliminate the humiliation/embarrassment aspect of doing something.