Duel Wielding:

Duel wielding means to use two weapons, one in each hand. If you wish to wield a second weapon in your off-hand, you may. The following rules apply for duel-wielding:

1. There will be a pentalty of -3 to strike for the weapon in your off-hand.
2. You cannot use a two-handed weapon in either hand when duel-wielding.
3. You will only gain ONE EXTRA ATTACK with the weapon in your off-hand. There are exceptions to this rule, but, unless you gain the ability of additional attacks with a weapon, this ruling will always apply.

Off-hand: If you are right handed, your off-hand will be your left hand.
If you are left handed, your off-hand will be your right hand.

Primary-hand: If you are right handed, your primary-hand will be your right hand.
If you are left handed, your primary-hand will be your left hand.