Sure! Let's do lunch! Week 42? No my in-laws will be visiting that week. Week 43? Sorry, I have a dentist appointment that week. Week 44, no I can't then, but maybe week 45? Oh, we have a christmas thing that week. Week 46? I'm not sure, but I think I need to keep that week open. How about we get back in touch after the holidays? Absolutely. Rinse and repeat.

I don't know Swedish from Martian, but I'm surprised the language doesn't have "pleasantries". They seem near universal.

I know that I (as an American) have had uncomfortable experiences with translated Chinese for instance, assuming someone was asking impertinent questions when it was really just them being polite.

I think most germanic languages are just much more focused on information content. On the other hand I can get into deep discussions with strangers, even disagreeing with each other, but not get emotional in any way, actually even enjoying the exchange. With Americans I feel there's a mountain of smalltalk and pleasantries to conquer until you can start being sincere. However that might also just me not understanding the culture enough to do that correctly.