I think there are two principal kinds of nice: 1) You say positive things. 2) You do not say negative things. Personally, I much prefer Type 2. Type 1 used

I think there are two principal kinds of nice: 1) You say positive things. 2) You do not say negative things. Personally, I much prefer Type 2. Type 1 used to be called being a "Pollayanna" (like the Disney character played by Hayley Mills in a movie about 1960 -- a little girl who tried to always say only positive things). IMO, that kind of nice is tiresome. I'm sure there are other variations on 'types of nice', like speaking up only to add positive comments, or to add info, or to add humor. But probably most folks would describe these using a term other than 'nice'. Though not everyone would agree, I think niceness can also take the form of negative comments that are phrased constructively, such as suggesting how a problem could be reduced/eliminated or how a product could be made better.