In everyone's defense, those are pretty nice shoes.
[Flops down into the seat on the train opposite him, smiling a little and shrugging]
No small talk, then. [Smiles at him, politely enough but the second comment is enough to have him sigh] I sincerely doubt you want to hear about a stranger's sex life, as that seems almost as ridiculous as talking about the weather.
All the same, you shouldn't talk about him like that. [As close to a 'watch it, pal' as he gets, lol.] Especially in any place he might hear you.