Most great performers have what is commonly known as good stage presence. Stage presence is the total impression created in the minds and emotions of the audience by the performer(s).
This impression is made up of both the drama of the music and speech and the drama of the visual performance. As mentioned earlier, there is much to be learned by watching other performers.
It is essential for aspiring performers to see professional singers, musicians, actors or other entertainers perform live as often as possible in the early stages. You can do this by going to shows or by watching performances on video or television.
Notice how each performer communicates with both their ensemble and the audience. Learn how they use both spontaneous and choreographed movement. Watch how the music is expressed through their bodies and facial expressions as well as their sound.
Notice whether they use humour or not, or any other element of public performance you can think of. All these things can be learned and developed and can be described as the various parts of stage craft.