马来西亚过海关时常用的英语表达包括：

Good morning/afternoon/evening! 早上好/下午好/晚上好！

My passport, please. 请给我护照。

Where are you from? 您来自哪里？

I'm from [Your Country]. 我来自[您的国家]。

What's the purpose of your visit? 您来马来西亚的目的是什么？

I'm here for tourism/business/study. 我来旅游/商务/学习。

How long will you be staying in Malaysia? 您将在马来西亚停留多久？

I'll be staying for [Number] days. 我将停留[天数]天。

Do you have anything to declare? 您有什么东西要申报吗？

No, I don't have anything to declare. 不，我没有东西要申报。

Thank you. 谢谢。

Goodbye. 再见。