I wasn't there, so this is from your descriptions.
Girls from about 11 till late teens are mostly, incredably insecure about themselves and their own appearances. They worry that their breasts are not the same size, that their bottoms are too big, that they are fat/thin, everything.
They give those looks to anyone who, from their perspective, doesn't seem to have the same problems.
In many ways, adolescence for Gfemales os worse than for Gmales. Boys seem, to them, to be strong, moody and possibly violent. Few Ggirls think they can survive that. Ggirls get pregnant. They all worry about getting a reputation for desperate promiscuty.
It's just a suggestion, but perhaps you can view young Ggirls with the same sympathy and expressions of support that you would to a preSRS girl of that age?