I'd say reading is the best tool to help you become more articulate. As well as teaching communication skills in writing they are a demonstation of good and bad communication skills. Feedback from people you talk with would be a good cue too. I remember once I was using a enhanced volcabuary in my talking with family.. they looked at me dumb and said "for goodness sake speak english!" A not so subtle reminder we need to communicate on the level of the listener too.
The genius Code is for developing a creative mind, so it might enhance the creative descriptors in your conversations 
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Photoreading.. Pr books on communications skill, NLP, marketing and advertising cover a lot of ground in communication.
Alex
