What do u call this kind of behavior?

I have a friend were very close and she once told me that when she's bored she enjoy showing new people different personalities of herself, some people thinks she's a cry baby and some thinks she's cool and some thinks she's weak. She said she doesn't care abo what they think of her it's more abo how she's enjoying that. I don't know how to explain it but it's like playing with people. She also said as long as I have good friends I already won and don't have to fake myself to get friends when I already have good friends but she does talk to new people in dif personalities and she doe really care as long as they don't kmow how she really is. I find it kinda weird because she also does it when she wants something. I don't know but what do u call that kind of person?
What do u call this kind of behavior?
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