1. I think you covered most in the lecture - the train tracks and the feet (obviously). I think you could consider the "cross cutting" of the edits between the two men's feet as they are walking a form of "criss cross".
2. Guy's clothing is fairly conservative, while Bruno's is garish - beginning with the initial shot of Bruno's spats shoes as he exits his cab. The soundtrack even gives him a brassy jazz flourish to accentuate them. Once they meet, Bruno is aggressively inquisitive - going so far as to jump into the seat next to Guy after peppering him with questions, while Guy basicall