Completely unrelated to food, but totally relevant to life in Lyon for Americans. Have I got a hairstylist recommendation for you...
I've had good experiences and nightmare experiences with hair salons in Lyon. But yesterday's was great. I highly recommend Antonio (color) and Lola (cut) at Jean-Claude Biguine at the Croix Rousse.
Antonio speaks excellent English and is very reassuring and knowledgeable. He's a color technician, but is available and happy to translate as needed during your cut/style. (His day off is Thursday.)
I checked with the manager and they would be happy to welcome English-speakers who feel more comfortable explaining what they want in their native language.
10 grande rue de la Croix Rousse
No appointments, just walk-in.
Open through lunch hour.
Tell him the American girl from Georgia sent you. :)