出国留学生活中常用的口语表达包括：

问路

Where can I catch a taxi？

Is this the bus that goes by the mall？

Can you show me on a map how to get there？

购物付款

How much extra do I have to pay for that？

Do you take credit cards？

Here you are. You can keep the change.

日常交流

I see.

I quit!

Let go!

Me too.

My god!

No way!

Come on.

Hold on.

Enjoy yourself!

Excuse me, Sir.

Give me

礼貌用语

Thank you.

Thanks a lot.

Excuse me.

Sorry for the trouble.

Can I help you？

Thank you for helping me.

Thanks, anyway.

How are you!

其他常用表达

Cheers = Thanks

Hang on = Wait a moment

Grab = get, make, find

I need a doctor.

I am a Chinese citizen.

I need help.

I'm lost.

Where can I find a train/metro？

Can you take me to the airport please？

这些表达涵盖了日常生活中的基本交流，帮助你在国外更好地进行沟通和融入当地生活。建议你在出发前多练习这些常用口语，以便在留学期间能够更加自信和自如地与他人交流。