I have trained my eye to look directly into my subjects eyes to get the best catch lighting. This takes some time to learn, but is so worth it! It means you have to pay attention to light! This is one thing about photography that I cannot emphasize enough! LIGHT, LIGHT, LIGHT! When you are taking pictures, look into your subject's eyes. Turn them around facing all directions to see what creates the best catch lighting. Walk your kids around your house and look for the best natural light location. The best windows are north facing...but since I only have ONE of those, I have found that my best window is in my kitchen after 3 o'clock. I usually drag my kids in there to take any of those "everyday" type pictures. Even before you try to capture those catch lights, just start noticing them. Then, look around and figure out why they are there. Figure out what is producing them. Then...get out that camera and shoot!YEAH for catch lights! It is the best secret to making a great photo...FANTASTIC! There are some ways to enhance catch lights with photoshop. If you are interested in that, please email me at firstname.lastname@example.org and I will send you a tutorial!
Also, remember that catch lights can be achieved with ANY camera, and any level of photography skill. Light, is light. It doesn't matter what you use to capture it. Exciting, huh?