HOW TO FREEZE YOUR BOSS IN YOUR FIRST DAY

For some reasons the company I work now is persuaded that Studied French at school, as I wrote in my CV, means It's my second language.
So after a first day full with technicalities, where I met a lot of people, nodded, smiled and took notes, but understood little, we arrive at the end of the day with the sudden apparition of a big French client.
The Commercial Director takes me with no time to focus on the situation and makes the presentations in French:
"I would like to introduce you to Bla bla, a very big client of ours, that alone takes care of France. And he is Bartolo Ansaldi, our new Marketing Executive. We count very much on him to promote our image Worldwide, and because he speaks French I would like to give him Moroco to begin with".

So they stare at me smiling, the guy offers his hand and I panic. But pretending I am confident I say in a professional tone:
"Enchanté".