Sometimes It’s Best Not To Meddle
A great way to improve the sense of realism of an open world game is to give the impression that the lives of NPCs (non-playing characters) go on whether you’re there or not. In Fallout 4, it’s possible to stumble in conflicts while you explore Boston. A group of savage night-owls might clash with unlucky bandits and it’ll be up to you (as long as you’re not seen) whether to intervene or not. Moreover, nothing prevents you to watch the whole scene from afar before jumping on the weakened survivors and ultimately rob all corpses.