There are a couple of options why you might be having blurry pictures. First off, make sure you are focusing your camera by pushing halfway down on the shutter button. Also, make sure you are taking the picture with steady hands. You can use the help of a tripod to ensure stability. Besides that, your other option is that your camera's shutter speed is too slow. Go into your camera settings and increase the shutter speed. This will work to give your camera a shorter snapshot of time in hopes of getting a clearer picture of the people.