question:  How do Martians communicate with men from Earth?
context: The golden Moon and the silver ship, symbols of greed. I came alongside and carefully started to lever the old man loose, one finger at a time. If a half dozen winos in Seattle hadn't helped me get them loose, Doc and I would have been wanted for the murder of a North American Mountie. All my great-grandfathers have it. 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. It had happened a few times right after I first found him, but now it was worse. "Had a quarter all along and yet you Martian me down to twenty cents." You don't have any quarter, not if I say so. I was bent double, but I got from the floor to the chair and found my notebook and orb-point in my hands. 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. Oh, are ... see ...." Somehow, inside me, I knew that these words were what I had been waiting for. They told everything I needed to know to become the most powerful man in the Solar Federation. I remembered that he was somebody very important whose name and work I had once known, even if now I knew him only as Doc. He shut up at last and I laid him down again and put his arm back across his face. She was pink and clean and her platinum hair was pulled straight back, drawing her cheek-bones tighter, straightening her wide, appealing mouth, drawing her lean, athletic, feminine body erect. I don't know why, but nobody will help you if they think you are blotto.
output:  By sensing and without the need for talking.
options:  Without using logical sense, only the imagination.  By sensing and without the need for talking.  Through manuscripts and unwritten books.  Via time travel.