Bill,please.

请结账。

Where should I pay?

在哪儿付钱？

It's on me.

我请客。

I'll take care of it.

我来付。

What is this for?

这是什么东西的钱？

I'm afraid there is a mistake here.

我觉得这儿算错了。

Let's go Dutch.

我们各付各的吧。

We'd like to pay separately.

我们分开付款。

Keep the change.

不用找钱了。

May I have a receipt, please?

请开张发票。