More Amateur Candid Vintage Photography And Camera Question ?

Photography and camera question ? - more amateur candid vintage

I have a professional camera, and I do not know where to start. I only have a Canon PowerShot, which is a fixed point and shoot camera, and the results are generally very amateur. I do not know their lot adjacent camera lenses, and it seems that transform an image of something like this
http://cm1.theinsider.com/media/0/64/83/jennifer-aniston-candid-picture-sho.0.0.0x0.550x870.jpeg
something
http://www.gossipcheck.com/blog/wp-content/uploads/2009/04/jennifer-aniston.jpg
You know what I mean? as result, the lenses means that this kind of professional-looking photos difference?
Well anyway, this kind of device should I start? It need not be something that I have some spectacular photos, but noticeableand more fun than I am a better and learn more.