It's best to be grand and natural when you go to your girlfriend's house for the first time. Ask your girlfriend first to find out the preferences of her family, especially her parents. Minor siblings don't matter, just have a meaning. Old people can buy cigarettes and wine, which is more common. It's best to ask the old man if he likes drinking. Many old people don't like drinking, so it's safer to bring white wine. Generally buy a pair, such as Wuliangye, safflower lang, Jiannanchun and Gumianchun. The cheaper ones are Zhuge Niang, Wanjiu Wang and Bai Yunbian. You can also buy health care products, such as amino acids, donkey-hide gelatin and bone-strengthening powder, and you can also buy massage products, such as foot massage.
All of the above are hot. If your girlfriend's family is financially better, you'd better ask her parents if they have any special preferences, especially mom and dad, which are generally easier to get rid of. For example, if a dad likes calligraphy, you can definitely win his heart by giving him a roll of good rice paper than ordinary cigarettes and alcohol.
In short, we must find out the enemy's situation before we can win the first world war! Come on!