What should the future mother-in-law say and do for the first time?

See what kind of person your mother-in-law is, and improvise. I met her once before, so I should at least know what she looks like. Since she invited me, it was her kindness. Take it easy. No matter what kind of person, it is definitely right to eat dessert. If you have housework, offer to help. If you talk, it is estimated that you will talk about your recent life at the beginning and lead the topic to your boyfriend. When a mother talks about her children, she will stop talking, and after the initial nervousness, she will become better.