There is a woman at my workplace , she is 23 and im 35 if thats important

she was hired a couple of months ago and she was assigned to work on the same projects with me and 4 other guys

alot of times she gets really close ( skin touching , not just when we are sitting but also standing ) even if there is alot of space , she likes to playfully hit ( i see her doing this with other guys too ) , i didnt think much of it because shes really young and the other 4 guys are her age and she should be attracted to them not me

One day we were walking to get some food during our break and i accidentally stepped on her foot and she said " are you trying to dominate me " , we sat down and ate and when she got up to go buy some water she put her hand on my leg for balance and when she came back and sit down she did the same

we started joking about work stuff and she started bumping into me i put my hand on her thigh and left it here , we kept laughing and i felt like there was some sexual tension ( maybe im wrong and its all in my head )

normally i would just approach the woman in this situation but i dont know , shes also very young , i recently broke up with my fiance and i dont wanna get hurt again

should i just mind my own business ?