The best examples that come to mind are when ordering food. As examples:
• You speak English and Spanish and are ordering a burrito
• You speak Thai and English and are ordering Tom Yum
I imagine it could depend on numerous things:
• You primary language or ethnicity
• What sort of restaurant
• Who you’re dining with
• Who you’re ordering from
• and probably a lot more…
That’s a great way to put it, though sometimes I run into situations where I know some of my audience will understand language A and not B and some will understand B but not A.
I always end up just freezing; it’s like my brain is rebooting or something.