She won't take food from people she's afraid of, I have been rewarding her with food whenever she shuts up on command while people are here since I got her at 8 weeks of age (she's now a year and a half) and she just can't seem to figure out that people are okay. The thing I found that works best is giving her a kong toy stuffed with food when I know there will be people here she doesn't know. It keeps her distracted and quiet, but what I would really like is for her to be accepting of people and nothing seems to be working.