Use a compass: North points to the red needle or marked north direction
Face the rising sun: East is where the sun rises
Face the setting sun: West is where the sun sets
Stand facing North: East is to your right, West is to your left, South is behind you
Use a map: Top is usually North, bottom is South, right is East, left is West
Use a smartphone compass app
At noon in the Northern Hemisphere, the sun is generally toward the South
Use the North Star at night in the Northern Hemisphere to find North
Use landmarks or directional signs if available