留学生打车时，可以使用以下口语表达：

询问目的地

"Where to？" 或 "Where are you heading？"

请求司机接单

"Could you please give me a ride to [destination]？"

"I'd like to be taken to [destination]."

"May I have a taxi at [location]？"

"Could you call a cab for me？"

上车前确认

"Please hop in."

"Step into the car, please."

询问价格

"How much would it cost to go to [destination]？"

"What's the fare to [destination]？"

要求打表

"Could you please switch the meter on？"

"Is the meter switched on？"

下车前提醒

"Please drop me off at [location]."

"Can you take me to the school gate？"

其他常用表达

"Could you speed up a bit？"

"Please slow down a bit."

"Do I have to change buses？"

"I need the receipt, please."

这些表达可以帮助留学生在国外打车时更加自信和方便地进行沟通。