Here's a wheel, and it's a very nice colourful wheel. It describes human emotions. Now, if we add a human emotion to a smile, we might very well be moving in the right direction. However, I think we have to bear in mind that a picture paints a thousand words. If a reader can't picture what type of smile it is, then the descriptor is not going to be very helpful. For instance, we might be able to picture a 'sleepy', 'playful', 'serene', or 'bored' smile, but what does a 'faithful' or 'stimulating' smile look like?
Hi, I'm Tim Ellis - I write a lot and I hope you enjoy what I write.