Showmanship or stagecraft is any tool that helps demonstrate theatrical skill and professionalism in front of an audience.
For many teams, poor showmanship might include a commitment to the fiction of the scene and breaking for laughter.
Stagecraft tools include avoiding blind spots on stage, making sure that other performers are not obstructing view of your moves from the audience, and partially facing out toward the audience--known as cheating out. Performers are also encouraged in theater to stand at similar levels to help this, rather than upstage where they force a player to face away. If one performer moves front, another performer might want to would toward the front to avoid upstaging