So, you find that you're in 3rd person when you become lucid? Personally I always end up in 1st person when I become lucid, but anyway...

As for any aspect of controlling dreams, just get creative. Sometimes you have to be careful when closing your eyes, but you can try closing your eyes and imaging that what you're looking at is from a first person point of view. Also, become aware of your dream body and get a feel for how you are standing. Try walking forward and feel yourself do it. Feel free to get creative.

I can't really think of anything else.