You can say "hey" in Dutch as well. But for saying "hello" in Dutch you can say "hallo" of "hoi".
'pretty girl' is in Dutch 'mooie meid' or 'knappe meid'
Meisje
No.
Dutch: Wil je mijn vriendin zijn? :P
Say "Hey can we talk"
give her a compliment or say, "hey, whats up?"
you say "hey, hey babe i gotta ask you a little somethin, sometin"
You can say "Ei, garota" or "Oi, garota" in Portuguese to address a girl informally.
You say to them hey take a shower with me :p
hey girl hey girl hey girl
You can either say, "Girl, coming?" or "Girl, are you coming?" For effect, you might want to add Hey before Girl (Hey Girl, coming?)", etc.