friendhship with polish girl

I would not hesitate to help friends like these ones.

Usually great friendships dont arise between people who just emigrated to your country. Im speaking from experience, being Polish and living in Chicago. Very high chances that they will just use you just to get by since they are in new surroundings and a different culture so they still havent found themselves as to speak. You can still small-talk with them but dont think about anything more as you might be surprised.

Great post. Well said.
But you forgot to add...

" Stop spying on her. "
She can probably feel your dissaproving glare everytime the curtain twitches.
No wonder the guys never come in. They probably find it creepy.
Your supposed to be her friend. Not her Dad/Mom

She's probably too scared to say hi.
Incase you interrogate her about her new found Social life..

Cut her some slack.