Answer: Gave the Soc actors fancy copies of the script and nice hotel rooms, ect. while he gave the Greaser actors lousy copies of the script and poor hotel rooms
Coppola gave the actors who played Greasers crappy, bad copies of the script and poor dressing rooms, hotel rooms, etc. and he gave the Soc actors nice copies of the script, as well as nice rooms and such to create real tension between them.