Start with the reason you are buying
Are you looking for something for the range, hunting, collecting, competition, or just learning? That answer changes the conversation right away.
You do not have to know the perfect model yet. Start with the purpose and work forward from there.
Handguns
Handguns are compact and there are a lot of different sizes, shapes, and operating styles. The way one feels in your hand can be very different from another, even when they look similar online.
If you are comparing handguns, pay attention to comfort, controls, overall size, and whether the model makes sense for what you want to do.
Rifles
Rifles cover a huge range, from rimfire models for casual range use to hunting rifles and modern sporting rifles.
Think about where you will use it, what kind of shooting you plan to do, and whether you will eventually want an optic or other accessories.
Shotguns
Shotguns also come in very different setups depending on whether the focus is sporting use, hunting, or general range time.
Length, fit, action type, and how the shotgun feels to you matter more than picking one because it looks familiar.
Your budget is more than the firearm
Remember the rest of the setup. Depending on what you choose, you may also want ammunition, eye and ear protection, a case, magazines, an optic, or other basic gear.
I would rather help you plan the whole purchase than have you spend everything on the firearm and realize afterward that you still need several other things.
You do not need to know everything before asking
Send me the models you are looking at, tell me what you want to use them for, and we can talk it through in normal language. You are not expected to walk in already knowing every term.
Just ask me.
If you are not sure what applies to your situation, send me a message before you make the trip. I would rather answer a quick question than have you guessing.