I think my host family finds me to be slightly dour (and more than a little simple). Most people who encounter me in English-speaking contexts do not, I hope, share this impression. In English, I’m funny (usually) and loud (sometimes) and a presence to be reckoned with.
But in French (and it’s even more difficult cousin, Frolof), I’m unable to joke. I’m also usually unable to understand other people’s jokes. It’s a crapshoot as to whether I’m able to respond to direct questions, most of the time. About the only thing I’m able to do with any consistency is obey direct orders to go get things out of the kitchen, and even then they have to be set out for me or I’m unable to find them.