Répondez s’il vous plaît

Now don’t close your eyes,
And don’t try to hide.
Or a silly spook may sit by your side.
Shrouded in a daft disguise,
They pretend to terrorize.
Grim grinning ghosts come out to socialize. Répondez s’il vous plaît. Spaces are filling up but we desperately need an accurate count of Attendees. We are dying to see you.