After finished my workout i was near this girl and said to her "you're going hard" and she smiled and answer like she was expecting me to approach her, she say is 35 kinda (i don't remember) and she's doing 2 year of nurse. She asked my age and after tell "im not 10yrs old", we have some fun and she already say hi im hannah and i say my name.
I say i had to go and she smack me like :* and i just say byeee
Didn't asking number or hangout because i had to go really fast.

To me imho seem easy to hang out with her but i need escalation
Should i ask her in gym or ask number to hang out after gym or weekend?