The multiple attack penalty you take with this weapon on the second attack on your turn is –4 instead of –5, and –8 instead of –10 on the third and subsequent attacks in the turn.

You can use your Dexterity modifier instead of your Strength modifier on attack rolls using this melee weapon. You still use your Strength modifier when calculating damage.

An effect with this trait is not inherently deadly. Damage from a nonlethal effect knocks a creature out rather than killing it. You can use a nonlethal weapon to make a lethal attack with a –2 circumstance penalty.

An unarmed attack uses your body rather than a manufactured weapon. An unarmed attack isn't a weapon, though it's categorized with weapons for weapon groups, and it might have weapon traits. Since it's part of your body, an unarmed attack can't be Disarmed. It also doesn't take up a hand, though a fist or other grasping appendage generally works like a free-hand weapon.