There’s no “Hey, let’s hang out sometime!” because that would be too vague, and perhaps bordering on chaotic for a structured German day. Instead, I find Germans to really want a purpose in everything (perhaps so they can pencil it into their schedules). So instead, something like “Hey, let’s meet for coffee on Thursday at exactly 17.27″ would be the correct German response.
Read more: http://www.nationalstereotype.com/german-stereotypes/