Since a tiny puppy my 11 month old has always been very nervous but very interested in saying hello to strangers. We have socialised her on a daily basis in a variety of settings with multiple people and she has really enjoyed saying hello, as long as people allow her to approach them. If she doesn't want to say hello she recoils and makes it obvious.
Recently she seems to be going through a fear period, as she is jumping at loud noises, joggers running past and doesn't want to go down an alleyway that she has been walking through for months.
Last week we walked past someone's house who she doesn't know but has said hello to a couple of times before and put her front paws up on the wall to say hello. He offered his hand out, which she nervously approached (typical for her) but then growled really aggressively at him. She has never done this before to a person (only occasionally to specific dogs).
A couple of days later we went past someone else's house and she looked like she nervously wanted say hello again. I asked him not to put his hand out due to what happened last week, but he did anyway and she did the same thing (approached it nervously and then aggressively growled).
Has anyone else been through this at this age and did it pass or was this a permanent change? What did you find helpful. I want to keep going out so she doesn't become desocialised but don't want to be responsible for a bite. Do I just ask people she doesn't know not to touch while she's going through this fear period?