Secondly, you may rest the camera on a shot wall or any other stable object around to take the shot of the subject. However, if you have a high wall, you may lean against the wall by resting the camera against the wall with its three corners touching the wall. It not only will provide a new point of view but will reduce the camera shake for slow shutter speed.
Thirdly, you should practice better shutter button technique by pressing the shutter release button halfway first, and then gently press the button for the release. You may use the timer option so the pressure ob the release button that can result in camera shake is eliminated.
You may like to get yourself calm and composed before clicking the camera by taking a long breath and holding it and then pressing the shutter button, initially, it worth trying.
If you are using a digital camera, at least take three shots in rapid succession but without ignoring the tips mentioned above. Select the best shot for processing while deleting the other two.
In the inset, the picture on the left is the result of slight camera shake and on the right with hardly any camera shake.