Load up with as much Physical Resist as you can (HPI/HPR is useful, too)
0-40, Train at the armory in New Haven
40-50, Train with the New Haven Quest for Parrying (should happen with other skills, otherwise, use the method below)
50-70, Target 8-9 Zombies to attack you and then drop out of combat. Heal yourself regularly and you should reach 70 Parrying within 40-60 minutes.
(I also took healing up to 60 while working on my parrying in this manner.)
0-40, Train at the armory in New Haven
40-50, Train with the New Haven Quest for Parrying (should happen with other skills, otherwise, use the method below)
50-70, Target 8-9 Zombies to attack you and then drop out of combat. Heal yourself regularly and you should reach 70 Parrying within 40-60 minutes.
(I also took healing up to 60 while working on my parrying in this manner.)