Let's get right to it.  Study light when you are out and about by noticing different kinds of light.  I will give you a few types here to look for while you are out and about and will follow up with more on a future blog.

Harsh light - usually from direct sun or a strong flash directly on the subject

Reflective light - light bouncing off a surface before hitting your subject. 

Diffused light - light through a soft box or a cloudy day.

So the tip is when not out with your camera, practice with your eye for different kinds of light important to photography.