Start sweeping along the wall furthest from the door. Place the broom at the edge of the wall and move it out and away from the wall by about three feet in brisk, quick motions. The brisk movements will remove the particles trapped in the carpet fibers.
Go over each section of carpet a few times with the broom to ensure you have removed all the large particles you can. Keep sweeping along the wall for a few yards, continuing to use brisk, fast motions to dislodge the debris.
Place the dust pan on the floor near where the dislodged debris is sitting. Brush the debris into the dust pan, using quick motions to ensure the pieces do not become lodged in the carpet again. Keep sweeping the rest of the room moving from the furthest wall from the door to the exit of the room. Only complete a couple square yards of sweeping at a time before you place the dust and debris into the dust pan.
Sweep the carpeted area with a carpet sweeper. These gadgets roll over the carpet and trap any large chunks of food, hair or grit that has fallen on the floor. Roll the sweeper back and forth a few times over each area in straight, parallel lines across the floor. This tool is best used on small messes since the rollers inside of sweeper can become clogged when overused.