Should I be nice to other people?
Why? What makes you want to be nicer?
Because it's fun to be nice, I like people and I need them
Being nice to others is admirable. You will make yourself and them feel better throughout the day.
It's easy to be honest and nice, right and it does feel good.
You are so nice. I am glad that I met you. It is good to nice to others and it doesn't hurt anything.