there are some steps you can start with.
1. you can show your french friends our site so that they can decide whether they like it or not.
2. you can create a french thread (like we have here Russian Thread or Swedish one)
3. You can create your own chat channel ( like the russian one for example)
4. And the most importiant I think - for any suggestions you can contact our admins by posting here or writting a PM to our Admin or any other stuff member.