t with myself about the internet. Leave this site 1-2 weeks before the game's US release (earlier if there's major leaks etc). Don't touch other sites (especially Youtube!) until I've finished a playthrough. Youtube spoiled a few Fallout 4 things for me, even though I wasn't even looking for FO4 related stuff. Wouldn't be so bad if it wasn't for spoilery titles (putting 'spoiler' next to the spoilery title doesn't help...) and spoilery thumbnail.
2) I'm not going to search for information on companions. I've gotten pretty bad lately, searching for info on where they turn up and when, so that I don't miss them. Checking approval, romance, personal quests etc. This time, I'll make do with knowing basic stuff: names, romance options, class etc. It could be a little risky, but it takes some of the magic away when I know too much in advance.
3) For the game itself, no metagaming on choices and dialogue. I pick the option that feels right for my character's personality. Take my time and make it feel natural. If there's no paragon/renegade system, it'll help, because I won't worry about being penalised for not sticking to a rigid system. I was good with this in DAI, only one choice where I flip-flopped and reloaded. Everything felt really smooth and right for my character.
4) Reading the codexes is a good one, I need to do it. I didn't much in DAI because the allcaps was bothering my eyes.