Don't be late.
Really, truly, absolutely sincerely; this is not a party that you can impress by swanning in half an hour after everyone else. Heads will not magically turn as you sweep into the ballroom; nobody will know you are there - because they'll be a mile or so down river.
Please, plan your journey to Tower Pier with the same seriousness you would treat getting to work - in fact, getting to work over six inches of snow, with a game ankle, in a transport strike - because when the clock strikes nine, we have to sail.
We have no choice in this - it's down to the pier authorities, and they are very serious, mean hombres - when they say
"Cast off", we've got to go.