First, Ms Jocelyne Fayard was really helpful and not only very kind. She helped us (my husband and myself, both welcomed by FnAK-Euraxess) finding information about the French health system and also understanding several matters related to insurance, car registration, school and kids.
Second, I took advantage of the offer for French courses at Alliance Francaise (I took the 2 months offered by FnAK, then two more months with the discount also offered by FnAK).
Third, I also enjoyed the social event organised at the Gadagne museum: very interesting tour of the museum and very pleasant buffet in the museum gardens.
Being at IGFL (ENS-Lyon and CNRS) we then benefited additionally from much help from the administration personnel at our institute and through the CNRS regarding health insurance (e.g. contact with MGEN) and taxes (meeting a tax counselor at CNRS headquarters in May).