Stand with shoulder width or narrower stance with feet flat beneath bar. Grasp bar with shoulder width or slightly wider mixed grip or slightly wider. Disengage bar by rotating bar back.
Return weight toward floor by bending hips back while allowing knees to bend forward slightly, keeping back straight and knees pointed same direction as feet. Lift bar by extending hips and knees to full extension. Pull shoulders back at top of lift if rounded. Return and repeat.
Throughout lift, keep hips low, shoulders high, arms and back straight. Knees should point same direction as feet throughout movement. Keep bar close to body to improve mechanical leverage. See Smith Deadlift under Erector Spinae. Also see Deadlift Analysis.