以下是一些酒吧服务员常用的英语表达：

1.欢迎顾客：

- Welcome to our bar.

- Good evening/afternoon, ladies and gentlemen.

2.引导就坐：

- Would you like a table or a stool at the bar?

- This way, please.

3.点单：

- Can I take your order?

- What would you like to drink?

4.推荐饮品：

- Our special drink of the day is...

- I recommend...

5.询问需求：

- Is there anything else I can get for you?

- How would you like your drink (e.g., with ice, no ice)?

6.上菜：

- Here's your...

- Your order is ready.

7.结账：

- May I have the bill, please?

- Are you paying together or separately?

8.感谢光顾：

- Thank you for coming.

- Have a great night.

这些只是一些常见的表达，具体的用语可能会根据酒吧的类型和顾客的需求而有所不同。此外，良好的听力和沟通技巧也是很重要的。如果你还有其他关于酒吧服务英语的问题，或者需要更多的例句，随时告诉我。