If you have an advantage for an action resolution then you may remove one minus from the dice roll before determining your result.
An advantage may be gained if a character has any Trait, or does anything, that may help them in the action they are trying to perform.
e.g. A Rugged Good Looks Gift may give an advantage on a seduction attempt.
Taking twice the time to perform an action lowers the difficulty by one.
e.g. 2 hours to perform a one hour repair lowers it from Fair to Mediocre.
Aiming in combat is classed as Taking Your Time (and is different from targeting a specific body
part).