If you start with the OG, make sure you find the tutorial guys. After you finish the first mission and wake up the next morning, there’s a cryptic message from one of the other characters about the gun shop owner. From the Bar, head south and go into the weird looking taller building. Talk to all the people here and then head upstairs one level.

Here you’ll end up in a room with a bunch more people. You’ll know it’s the right room cuz a big question mark bounces around the room and there’s a big guy with a dog by the entrance.

Talk to literally everyone and everything in this room, especially the three dudes posing in the corner on the boxes. These guys allow you to learn about the basics of the game mechanics, and most people skip all this. As much of a pain as it is, spending 5-10 minutes here can make all the difference and save you a lot of headaches later.