The core idea for staying neutral is pretty straightforward - just remember that every little action affects how factions see you (this happens because the game tracks even minor interactions). Start by focusing on missions that don't force you to pick sides, and always think twice before getting into fights even if someone else started it. The game actually helps you keep track with a neat color system on your map, where white markers mean you're doing fine with that group.

Something interesting about faction relations - if you mess up, you can usually fix things by talking to their leaders and maybe doing some special tasks (bringing valuable items often works too). Watch those npc markers closely, because when they start shifting from white to red, that's the game warning you that you're about to have problems. Try to build up some extra goodwill with important factions when you can, since that gives you some breathing room if things get messy later (this is especially helpful when exploring new areas).

One thing many players miss - even small stuff like looting bodies or stumbling into restricted areas can damage your standing, so always be mindful of whose territory you're in. The nice thing about staying neutral is you'll have access to more traders and areas, which really pays off in the long run (just be ready to walk away from some tempting missions that might force you to choose sides).