How do I show my dog I'm alpha?

Real leadership looks like: Showing and teaching. Use lure-shaping to teach your dog to lie down on cue, rather than pushing on her shoulders or pulling down on her collar. Or “capture” the down by “marking” it with the click of a clicker or a verbal marker, such as the word “Yes!” and giving her a treat whenever she lies down on her own, until she understands this is a great way to win more rewards and starts offering the “down” more frequently. Then just add your cue. Understanding that when your dog doesn’t do something you ask her to do, it’s because something is interfering with her ability to do so – she may be stressed, distracted, in pain, or simply hasn’t learned the behavior as well as you thought. Empathizing and comforting your dog when she is stressed, hurting, or confused instead of insisting that she perform. Forgiving if your dog did something that upset you, whether she soiled your carpet or snapped at you when you picked up a shoe she had snagged, don’t hold it against her. Do your dog a life-enhancing favor and eschew the use of force and intimidation in favor of cooperation and trust. In the end, your role as a benevolent leader rather than an alpha dictator will make life better for both of you.