When riding, you should be looking up, not directly in front of you. The world will come at you much slower, allowing you to process speed more accurately. It also lets you keep an eye out for potentially dangerous drivers or other obstacles up ahead. Lead your way around corners by ensuring your chin is pointing its way through the turn.
While scanning the road, look at the mirrors of vehicles around you. If you can’t see the driver’s eyes, they can’t see you. Also pay attention for front wheels of parked cars pointed towards the street. If the driver is intending to merge with traffic, they might not see you as they quickly scan the road and pull out.