Cliff has deliberately arrived early so he can talk to Sandra alone, hmmm interesting.
Michael appears and acts in a way that suggests that he is annoyed by Cliff’s arrival before him. Both obviously fancy Sandra.
Not sure how Sandra feels, possibly quite likes Cliff, I see no other reason that anyone would enjoy talking about Sweden.
Why did Cliff go to Sweden? From his name I might guess that he’s in his 40s at least, and perhaps of a working class background but now finacially well off. He probably went to Sweden to look at a factory or something, I doubt it was really a holiday, industrial espionage more likely. Stealing Volvos secrets