What are signs a girl is bi curious?

Ok so there's a new girl that started my gym and yes she's cute. Anyways, we are both straight btw but I'm open to experiment lol we were in the locker room alone and I admired her breasts (she seems to only wrap herself waist down with a towel so her breasts just hang there hard not notice!) After I admired them I asked if they were real and she said yes. Then she told me to touch them (she already had a top on though by this time) then I did but she was like "your feeling my bra touch them underneath" so she pulled up her shirt and bra and yes I grabbed me a handful lol do you think she is flirting per say or just being very open but might get offended if I ask to touch her sometime in future? We are suppose to do drinks once her family goes back home to Mexico (they are here in vacation to spend time with her). What are signs a girl is bi curious? Any advice be helpful!

 

sign #1: she doesn't post the same thread repeatedly, in the same exact forum no less.