How about a drink?
去喝一杯怎么样？

Two bottles of beer, please./Two beers, please.
请来两瓶啤酒。

What kind of snacks should we have?
要什么下酒菜呢？

I like to go barhopping.
我喜欢换酒馆喝。

Would you like a refill? (Would you like more? How about a refill? Would you like one more?)
再来一杯，怎么样？

This whiskey is strong.
这种威士忌挺冲。

I feel a little tipsy. (I'm slightly drunk.)
我觉得有点儿醉了。

I'm loaded. (I'm wasted.)
我喝得酩酊大醉。

Drink moderately. (Don't overdo it. Please don't drink too much.)
喝酒要适可而止。

I get drunk easily. (I get drunk quickly.)
我的酒量小。

I'm a heavy drinker.
我的酒量大。

I drank too much.
我喝得太多了。

I have a hangover.
我头天的酒还没醒呢。