Original Text:
- Entrez donc, monsieur . . . . . ne vous gênez pas . . . . . c'est un tableau vivant . . . . . . absolument comme à la Porte St. Martin.

Translation:
Come on in, Monsieur, don't be shy. It's a living picture.... just like (you'd see) at the Porte St. Martin.
(note: at the Porte St. Martin theatre lightly dressed ladies performed for the public).