The below video was shot on the metro in Paris. Watch the group of young girls so you so see how they travel in packs for quick visual identification. Typically they will be in groups of three – but could be more or less. Pickpockets have always been a problem in and around Metro stations. Travelers should always be extra alert at these locations, especially Metro lines and stations which tourists frequent around the Champs Elysees, Louvres and Eiffel Tower.
Most important, anytime you ride the metro, no matter where you are – watch your valuables.