My daughter is now 11, and has been, of course, raised around dogs for most her life now.
Yesterday I was trimming Jenny - we're going in stages, - and Ashley was holding her leash - at one point Ashley said "Uh oh!" and I said "What?" She said "Well she stopped panting and I thought she was getting upset and going to bite!"
I thought that was pretty observant of her, considering she's only 11 years old. Way to watch the body signals/language, Ashley!
Although Jenny didn't bite