Well, each girl will take it differently. If you're going to do it, then I suggest you do it in a light, playfully joking around way. Never do it to hard to a girl, or she'll kick your ass. (Kidding, sort of.) If she's the type of girl that takes everything very seriously, then I don't suggest you do it. But if you know that she'll be able to take a joke, just do it, she'll know you're flirting around.

Depends on the girl. Is she a "tough girl" at all? Is she the sensitive type? Best thing is to kinda laugh about it imo. Clearly she is not playing around but by all means, not all girls like to be pushed back, let alone pushed in the first place. But of course there are those who like to get physical. Depends on how she is.

If she's playing, play back, if she's not, tell her to stop being a bitch.

IMO

Well look, as it has been said, depends a lot on her personality. Maybe she wants to play around. I have a strong strong feeling she is just playing with you, get her back somehow. Obviously dont go overboard and hurt her but do something stupid like...untying her shoelaces or whatever when you two are just about to start walking somewhere and smile as you walk backwards or whatever, just off of the top of my head. If she is not a bitch or cant take a joke (especially after her pushing you...for fun i hope) she will like that I think. Play back, she just might like you.

u HAVE to push her back. girls dont usually tease guys, but when they do, it means they like u so yeah, i would feel disappointed if a guy didnt push me back but in a gentle way, u dont have to kill her

Is she pushing you playfully or is she just pushing you?

maybe in a gentle playful way?

dude she wants to fite u when she pushes u just straight lay her out lol jkjkjk but yeah push her back not to hard though and be like what u want some lol

Definately depends on the type of push. If its playfull you got to do it back, or wink :p. If its hateful, I'd just keep stepping