Fighting Defensively as a Standard Action: You can choose to fight defensively when attacking. If you do so, you take a –4 penalty on all attacks in a round to gain a +2 to AC for the same round.
Fighting Defensively as a Full-Round Action: You can choose to fight defensively when taking a full-attack action. If you do so, you take a –4 penalty on all attacks in a round to gain a +2 dodge bonus to AC for the same round.
You can defend yourself as a standard action. You get a +4 dodge bonus to your AC for 1 round. Your AC improves at the start of this action. You can’t combine total defense with fighting defensively or with the benefit of the Combat Expertise feat. You can’t make attacks of opportunity while
using total defense.
Combat Expertise (Combat)
You can increase your defense at the expense of your accuracy.
Prerequisite: Int 13.
Benefit: You can choose to take a –1 penalty on melee attack rolls and combat maneuver checks to gain a +1 dodge bonus to your Armor Class. When your base attack bonus reaches +4, and every +4 thereafter, the penalty increases by –1 and the dodge bonus increases by +1. You can only choose to use this feat when you declare that you are making an attack or a full-attack action with a melee weapon. The effects of this feat last until your next turn.
Am I reading this correctly to say that a normal character can take a standard action attack, defensively, and gain the bonus for combat expertise and fighting defensively the rest of the round (doing move actions etc).
But cannot use these same bonuses to move and then attack?
That seems nonsensical and arbitrary to me.