How to recruit Curie - Dragon Quest 6
Curie is one of the optional characters available for players to unlock in Dragon Quest 6. He acts as an improved version of Healie, another one of the optional characters in the game. There are two ways for you to obtain Curie, the first is to exchange 10 dreams with other players by using the Suite Dreams in the Dream World. This is an optional town that's found just north of Castle Graceskull.
In order to exchange dreams with other players you'll need to know someone else with the game and to also be in close enough proximity to them that the NDS can connect with them... Since this is an older game I assume most people reading this probably have no one to trade with which means you'll have to wait until the post game to recruit Curie.
Note: He is not available in the SNES (original release) of the game; only in the DS and Mobile remakes are you able to recruit him to your party.
Once you beat the game all you need to do is speak with Curie to recruit him, it doesn't matter how many dreams you've traded with other players. Curie joins your party starting at level 4 and now that you've recruited Curie you'll also be able to recruit another optional character, Shelley.
Vocation Permanent Rewards
These are the passive & permanent rewards that you will get when mastering a Vocation. You'll keep these boosts even when switching to a different Vocation. Once you reach level 5 in every Vocation you'll receive a Gospel Ring from the priest in Alltrades Abbey as well which will allow you to avoid encounters. You do not need to reach level 5 in every Vocation on 1 character, it can be done on multiple characters.
Gladiator: +20 Strength
Armamentalist: +20 MP
Paladin: +20 HP
Sage: +20 MP
Ranger: +20 Agility
Luminary: +15 Style (or 20)
Hero: +40 MP
Dragon: +20 Strength
Liquid Metal Slime: +100 HP