Like, where something happened - or something was just pwetty that you actually said 'woah' -
No, I don't talk to myself out loud.
But I definitely let out a bunch of mental whoas while playing 999.
Kingdom Hearts
I only really do it when glitches happen or in close matches of fighting games.
Or when my baby sis and I are having Game Grump sessions on the front room couch making fun of everything that doesn't make sense.
That feel when I finally played the Metal Gear Franchise, from 1 to Revengeance.