LogFAQs > #969199124

Always focus on deflecting over dodging. I don't think you actually get any invincibility frames from sidestepping an attack. If a weapon looks like it connects with your character model then it will deal damage even if you think you "dodged" through it.

You need to stare your opponents in the eyes and never back down.

As mentioned it's good to think of it as somewhat of a rhythm game, or rhythm combat. A good pattern to rely on is slash twice (NEVER mash) then deflect their counterattack, repeat until you win. It's usually a good way to keep control over a duel.

Oh and about Mikiri counter, you usually have quite a wide window to perform. Make sure you dodge directly into the thrust, and you don't have to be super close for it to activate. In fact it's a little easier to use Mikiri if you have a bit of distance from the enemy.