A friend of mine, George Allen, in Germany used to have a regular routine when he set up. He would stalk around the site and sight through his hands like a movie director. He would explain that the signal would bounce off of this mountain, glance off of that and then roll down the valley to the receiving station. He was a real ham and even convinced some unsuspecting team members.
OTOH if you choose a site properly, surroundimg hills and structures can attenuate and reflect signals making RDF more difficult for the enemy.
