One of the great things about using natural light is you can still get creative and use the light to your advantage just as you would if you were dropping flashes in to light a portrait up. Try and be aware of where the light is coming from, be aware of the quality of light – Is it diffused through trees or leaves? Is it weak morning light that gives a slight blue feel to the picture? Is it bouncing off a wall that is acting like a reflector? Try and see how the harsh sunlight outside gradually drops off as it lights a long corridor providing a great impromptu ‘studio’.
Become more ‘light aware’ as you go about your daily business. Like anything else it is all about practice but try and teach yourself to become more aware, all the time, about how the light falls at a particular time of day or the way light strikes a surface and constantly look to see how you could then use the light to take better pictures.
Good light = good pictures, it’s as simple as that.