You are partially correct in that the brain/body require/produce electricity to operate. However you fall down when you likens the body to a radio transmitter whose signals should be capable of reception by another human. The signals from the body are minute and unamplified, unfocussed and effectively random in comparison to any other person near by. Then we have the fact that the body is not a radio receiver, the brain/body has developed to operate on electrical conduction and not em transmissions.<quoted text>
Walls can interfere with EM signals. Screws, nails, etc. Paper or plastic screen should work.
You should look for shared imagery or "feelings". However, this can not be a topic thought transfer. You have to get into the goodie bag of the subject emitting. A more emotional gut level thing, not a simple thinking of a number.
Given the deliberate and the accidental usage (operating switches, electric motors, static discharge etc) over the full spectrum of the em bandwidths then consider yourself lucky that the human body does not detect/respond to such signals. You would be dancing like a scrap of paper in a hurricane and totally insane within moments.
Ahh, now I see why you believe what you believe