Originally Posted by
Lysah
You said you saw the woman first before your dog got anxious. Your mind would have noticed things like her not having shoes, even without you being conscious of it, and it is believable that you behavior would have slightly changed, something dogs easily pick up on.
You don't necessarily have to feel fear, even just being uncomfortable is something that you will pass on to your dog. If the woman made you at all nervous then your dog will be nervous as well. That's why one of the most common and powerful socialization techniques for dogs is to get their owners together (especially drinking) and relaxed, so that the dogs will be relaxed as well and become comfortable with mass interaction.