Simply sit a Log on coals to smolder for hours, to 'Smoke Marinade' your meats. You can use 3 logs as a triangle to frame your charcoal like Billiard Balls. Don't let them catch fire and burn up, as there is minimal smoke in fire, you must smolder smoking woods. Cut into smaller Chunks if required. Charcoal is your heat source and smoldering BBQ smoker wood is your smoke flavour. Oak is good smoke flavour for most foods.
See Home Page Chart to match Smoke to Meats.