In environments with poor reception why is it that when you physically get close to a radio reception improves

Question

In environments with poor reception why is it that when you physically get close to a radio reception improves

Answer 1

b/c you act as an earth ground, improving the antenna system.

Answer 2

Your body acts as an antennae, seriously.

Answer 3

You body  becomes a giant antenna, picking up the radio signal, which is then capacitively coupled to the actual antenna in the radio.

Lot's of technical mumbo-jumbo, I know, but hey, you asked ;-)

Answer 4

Because your body carries ohm's, so the signal travels through you.