I sneak a glance at Potter just before we enter the vestibule. He’s wearing what, on first glance, appears to be a rather nice suit. He’s got on some kind of shiny waistcoat or cummerbund. I catch a tiny glimmer of something gold. It’s a good choice. The wedding’s colours are aubergine, silver, and white. Gold blends in without accidentally matching the groomsmen. Man. Me. Smart choice.