Since you already know which side of your brain is more dominant, try this exercise out:
Can you do this correctly? I admit, I had to really focus on this to get it correctly. I have this insane image in my head that the two sides of my brain are duking it out:
Right Brain: It’s red, dagnabit, reeeed!
Left Brain: Can’t you read, mate? It says blue!
Great. What a way to argue with yourself. @_@