mine is a very shy fish. so shy that i don't dare put anything into the tank 30 minutes before feeding since he/she will hug up against the rocks, change color to match, and not eat if there is food put into the tank with that time. I find it interesting that the foxface is so shy. however, other the last 5 months that I have had him/her, trust has been established and continues to be established.
good luck, mine eats like a pig and he/she is beautiful when out swimming around.