On the next page is a useful table to use as a guideline, but basically each character can have one or two positive personal skills and one negative personal skill.  You choose a condition (over/under certain HP, facing certain enemy type, standing on terrain/close or far to other players, etc) and pair it with a stat bonus/penalty like +15 to evasion, +2 to attack speed, -2 damage, and so on.<br/><br/>So make up 2 good and 1 bad, preferably something that will fit your character's personality and flair and have him stand out from a nameless mook with equivalent stats.