Right brain (Right Hemisphere) vs Left brain (Left Hemisphere) - which do I use and when?

 
I saw a video recently (which I will try to embed below) of a brain re-searcher having a stroke and experiencing the complete meltdown of her left brain.  She was able to recount everything with explanations and humour - very interesting. 

But what came out of it was that left brain works serially - it uses logic and order.  It organises and categorises, etc.  The right brain works in parallel mode - many things can happen at once, it doesn't require order or logic, it just pulls the collective together and makes sense of it all.  Watch the video - you will understand the contrast.

After seeing the video, I started making all these associations with what the left brain should do and what the right brain should do, and wonder-ing how to put both to the best use.  I suspect that most of us have well developed left brains and underdeveloped (or underused) right brains which would explain why there are more right handed people than left.  I feel I'm particularly left brained, especially having chosen Math, Phy-sics and Computer Ccience as my fields of study.  It's no wonder I ended up in Cambridge, home of Stephen Hawking. 
Now, that may seem like boasting, but I find it a real weakness.  I have an underused right brain.  I'm extremely lopsided and wish to address this balance (and this is probably the sort of thing a left-brained person would say).  I have a contact in South Africa (the heart land).  After se-veral conversations with him, I suspect that they are more right brain there.  And my artist friend I suspect is right brained - I often don't sus-follow her logic!  I had always put it down to having an artist mind, but I pect she's using her right brain. And if she IS using her right brain, then there is no logic to follow!

So, how does one develop the right brain?  Do I start writing left-handed?  Are there certain puzzles or exercises I can do?  Is my strategy for becoming more right brained merely another left-brain exercise?
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Ross Galán, NLP Spiritual Life Coach
at the Spiritual Life Coaching School