Only you can do that. Here are a few things to think about when you're taking photos. This is an essential skill with children, Sunday markets, processions - almost anything but scenics and inanimate objects. The key to grab shots is to be prepared - have you hands in position on the camera and don't hesitate.
Auto focus comes in extremely handy here.
Don't take shots you know are lousy. Then it becomes another gray shot that probably won't make it into an album and even if it does, nobody looks at it. On the other hand, if you find a scene with lots of potential, go for broke. Take lots of pictures from lots of angles. You may only get two or three really perfect ones out of an entire roll but they will be photos you want to hang on your wall.