What should I pay attention to when I go to my girlfriend's house for dinner for the first time? Better give more advice.

Introduce yourself to your aunt and uncle first. Pay attention to manners. You can talk to your girlfriend and relatives who are more concerned about yourself. It is best to talk about your occupation or skills. Don't get too close to your girlfriend. Of course, it is also possible to show good feelings appropriately. Smile, be kind, say hello to them more, or talk to them about some questions they are interested in. Let them know you. Your main task is to get on well with them, because this is a family dinner, not a date.