i had a similar situation when i was on practicum... i was there for about 6 weeks and was partnered with someone from another school. he was only there for the first 3 weeks and sometimes we'd be so busy and had to split up so we'd never get a chance to talk that day. we always made a point of saying hello to each other in the morning and bye when our shift ended. sometimes we'd pass each other in the hallway and just holler at one another for a minute.
he always talked about how we should hang out and looking back now, everytime he asked me what i was doing on the weekend i always mentioned i had crazy busy plans. i just thought he was being nice/polite.
he ended up asking for my number 3 times before i actually gave it to him on his very last day there. it didn't mean i wasn't into him, i saw him the first day and hoped so hard i got him as my partner... lol. i legit would just forget to give him my number and honestly just did have plans the whole time i was there.
he "bossed it out" though and now i have the biggest crush on him, we talk whenever we're both not crazy busy. he has multiple jobs and i'm in the middle of my last semester.
you got nothin to lose by asking her out or even asking for her number to keep in touch. i'd suggest maybe just trying to speak with her when you can then ask again the last week you're there.
there's a chance she won't want to get involved while you're still at practicum because its sort of conflict of interest if she works there. it might take some time but if you think she's really cute then take the risk, could be worth it in the long run.
good luck OP
