 How do Martians communicate with men from Earth?
I told the human no, thanks, and walked Doc toward the flophouse three doors down. Martians approaching the corner were sensing at Doc and me. I found I couldn't focus both my mind and my eyes through the electric flashes of agony, so I concentrated on Doc's voice and trusted my hands would follow their habit pattern and construct the symbols for his words. They told everything I needed to know to become the most powerful man in the Solar Federation. I was a man , of course, not an alien like a Martian. Earthmen ran the whole Solar Federation, but I was just as good as an Earthman. I surrounded it like an ameba, almost in a single movement of my jaws.
 By sensing and without the need for talking.
 Without using logical sense, only the imagination.  By sensing and without the need for talking.  Through manuscripts and unwritten books.  Via time travel.