Yeah. But I'm really not a big fan of that. The strategic nature is a part of DnD. If you remove that you end up making it less engaging, since you just shoot sh*t into the abyss, hoping it might do something, or not. Thats not particularly fun to me. Not knowing things is interesting, because you can figure them out, or have to plan and think to work around what you know and don't know.
It just feels... pointless if you never understand what's going on and also have no way of figuring it out. You just go somewhere vague, do something vague and accomplish something vague.
That may be fun for some people but its not what DnD was designed for or what I hope to get out of my games. Thats why I also don't recommend using it in every game as a general rule.
So he’s pretending and his companions don’t notice, or they all are?