To see her smile, you have to go miles

I am not used to photographing people..because I am not good at it.

Please comment on this one!

Aditya, the most important thing here is that you were able to relate to your subject and get a very nice, very natural smile from her. You also have the shadow side of the face towards the camera. That is called "short light". When you can, use short light.

Let me offer a few rules to help you:

Do not photograph your subjects very close. It distorts their faces. To understand this, use your camera on wide angle and get as close to the face as you can. Make an exposure. Next step back at least 10 feet and zoom close to your subject with the lens. Fill the frame with the subject's face as before. Make an exposure and compare the two images on your computer monitor. You will notice the distortion. Try always to be at least ten feet away and zoom in rather than get physically close to the subject.

Do not photograph in the sun directly, especially in the middle of the day. See the shadows around her eyes? Portrait photographers call them "raccoon eyes". Also light shining directly on the subject is hard light and very unflattering. Try an overcast day, and when the sun is lower in the sky. Try not to have anything in the background or foreground that the sun is shining directly upon.

Start with these guide lines, and you will be ready for more guide lines to help improve. If you like, you can email me portraits for me to critique.