MapleStory/Traits

Traits go hand in hand with professions, since three of them are directly linked with progression made in crafting skills.
 * Diligence increases as you craft (create something through Accessory Crafting, Alchemy, or Smithing) or as you smelt ores/ turn seeds into oils. Leveling up Diligence increases your chances of having bonuses when using scrolls as well as receiving double craft mastery when you craft at a chance (excluding Level 10, Master Craftsman and Meister level mastery).
 * Insight increases as you mine. Leveling up Insight increases your Accuracy, Avoidability, and ignores monsters' Elemental Resistance (such as Physical resistance, Ice resistance, etc.), as well as letting you reveal equipment of higher levels for free.
 * Empathy increases as you dig up herbs. Leveling up Empathy increases your max MP and duration of buffs.
 * Charm gained by getting increased fame level or wearing special items or cash items. Also obtained through hair changing. Gives you pocket slot at level 30 and new facial expressions every 5 levels thereafter.
 * Ambition increases by killing boss monsters. Reduces EXP death loss, increasing Battle Mode damage and ignores a percentage of defense.
 * Willpower increases as you clear PQs. You also gain willpower by staying online. Your HP and defense increases and your abnormal status resistance (stun, seal, weaken, slow, seduce, etc) increases.

Insight

 * Accuracy and avoidability increases every 5 levels.
 * Every 30 levels, allows a certain job advancement tier equipment to reveal potential free of charge.
 * Maximum effect: 1050 accuracy and avoidability increase, free reveal of potentials for equipments up till level 120.

Empathy

 * Quest EXP increased by 1.5% per 5 levels as well as a 100 MP increase.
 * Maximum effect: 30% quest EXP added excluding PQs, 2000 MP increase.

Charm

 * At level 30, pass to Big Headward 1 Rose Clipping for pocket slot.
 * Every 5 levels starting from level 30, quest is activated for facial expressions after unlocking pocket slot.
 * Maximum effect: 1 Pocket slot, 15 facial expressions unlocked.

Ambition boss list
Featured here is the list of each boss that gives ambition, and the amount given.

Willpower
Increases 100 HP, 1% Abnormal status resistance and 5 Defense points every 5 levels. Maximum effect: 2000 HP, 20% abnormal status resistance, 100 defense increment.