You mainly need to be looking right (flipped for anyone who doesn’t drive on the left) pretty much all the roundabouts here that regularly have pedestrians will have triggered traffic lights or the pedestrian crossing at least a car length before the roundabout starts so if you’re entering a roundabout you’re almost always in front of where people will cross if they’re not just being dumb. Once you’re used to roundabouts they’re pretty formulaic and the biggest problem (for me anyway) on an unfamiliar roundabout is knowing which lane to be in, not the traffic already on the roundabout.