I you wanna say it pleasantly you should say :
Piękna dziewczyna or śliczna dziewczyna
You can say 'laska' BUT it's not always perceived positively, it's rather used in teenage slang and some girls don't like it.
i think its the same
You can say "do widzenia piękna" in Polish to say goodbye beautiful.
Piekne Piekna [ If you want to say it to a girl] Piekny [ If you want to say it to a guy]
hello beautiful in polish
how do i say im the luckiest girl in the world to have you in polish
beautiful
dobra robota
beautiful in German = schon (the 'o' has two dots over it)
"Śliczna dziewczyna"
Beautiful: Güzel Girl: Kız 'Güzel kız'
Well You Can Say: It Was Nothing I Could Do Any Thing To The Worlds Beautiful Girl (:
I think you are beautiful. Just say it.