Well, it's not difficult. Look at your heart, you will make many good friends. Nanjing people like to eat, but your Chongqing food is too spicy, so many people can't get used to it, so don't invite friends to eat spicy food. I am also in Nanjing. You can treat me to spicy food first. I'm not afraid, hehe.
I hope my answer is helpful to you.