To dominate the net in pickleball, start by mastering your serve. Focus on developing a powerful and accurate serve that lands in the non-volley zone of your opponent's court. Also, practice footwork drills to increase your quickness and agility. Next, work on developing good angles when hitting shots at the net. Move around the court quickly and anticipate where you need to be for each shot. Finally, focus on being consistent with your net play by drilling specific shots such as drop shots and volleys.