Thank you farmergirl. I had the camera ready but she either went by before I got out there or went the other way. I'll try again tomorrow and if I catch her, I'll just keep it for now in case her behavior worsens. For now we'll just ignore it...perhaps that bothers her even more IDK. This is a nice area, some houses are at least 300,000 to a million dollar homes. Just goes to prove, that bad behavior can happen at any economic level.
When she did it to my 9 yr old before who was by herself on the sidewalk and the police went down to warn her...she made the extra effort to go around the block after that. Her daughter came the next day with a cute card and friendship bracelet...the card said "lets have a do-over". We were so relieved it was over. I don't know what's going through her mind.

Personally I don't do the hand gestures -I feel low doing it lol. Ironically her daughter in grade 5 won the speech contest for the topic of bullying.