(Pictures are taken for representation purpose only) Don't do anything insensitive: Some guys have a tendency to flirt even when they are in a steady relationship. The nature of flirting might be completely harmless which means nothing at all. But if you are with a girl who has broken up, be extra-careful. You must remember and respect the fact that, for all you know, her previous boyfriend might have been a philanderer which led to the break-up.