Comment by Slow_Hand

American here:

I did it last night with a cashier and she laughed and was, I think, amused by the novel response. It seemed to brighten her up a small amount. She then continued to make conversation by saying “Well let’s see if we can’t get you to better than normal.” That was slightly offputting and I wish she didn’t feel the need to take it there. I’m perfectly content with feeling “normal”.

I suppose the way I think of it is like dynamic range of expression. Normal is baseline and perfectly suitable. It’s where I like being. Great or bad are for special cases where I feel extraordinary.