Drinking is a highly prevalent part of socializing in Chinese culture and frankly, one of the most annoying things about Chinese culture. Many social events involve drinking and playing some form of drinking game. If you get asked to go out for drinks, don’t turn down the opportunity; this is important for building relationships.
The problem with Chinese people and drinking is, well… many Chinese people don’t have the proper enzymes to break down alcohol. Nevertheless, Chinese people (especially those who can’t hold their liquor) stubbornly hang on to the belief that they are seasoned drinkers. Add the fact that refusing a drink someone bought for you might cause them to lose face, you have a recipe for disaster.
If you get invited to go out for drinks with a group, remember, you’re there to socialize, not to take advantage of girls that are too drunk to walk properly. I always thank the host for inviting me, introduce myself to the group. I’ll make small talk, play their drinking games and maintain very low key behaviour, the upper limit being dancing with a girl and spinning her around. No grinding, no makeouts, no fingering her under her dress. None of that. I’m here to build relationships. What often ends up happening is one girl in the group ends up vomiting from drinking too much. The group ends up in a state of panic and leave to get her home in a cab. I guarantee you that there will inevitably be one guy who insists on taking her home. Not only does this not work, you will earn the reputation for being oily and potentially be ostracized from the group for trying to take advantage of her.
Similarly, for 1 on 1 dates, a couple of drinks is enough to get the girl to relax. Remember, a lot of Asian people (Not just Chinese) have very low alcohol tolerance; don’t overdo it, you might need to clean up her puke after that.