[EdwardDiego]

Every culture has things like this.

"You'll have to pop in next time you're in the area!" does NOT mean "turn up at my house unannounced". Even if it sounds like it.

Or "How are you going?" is not a prompt to actually tell them how you're going.

[rayval]

Yes when I first moved to the US, people would greet me with "How ya doing?" and I thought they really did want to know. It took a while to understand that it was just a way of saying hello.

I'm told that, in China, a way to greet someone is to say: "Have you eaten yet?" 你吃了吗

You are not supposed to provide a detailed answer such as: "Yes I ate a breakfast sandwich this morning at 8 am".

Instead you simply say "I ate" (吃了) or "Nope" (没呢)

[lucasban]

Working in Singapore, I encounter this often (but in English). It took me a few months before I realised that I did not need to provide a detailed answer.