Presence is a state of an entity with energetic focus toward the environment.
Cultural Definition
The fact or condition of being present, or of being within sight or call, or at hand. "Any painter can benefit from the presence of a live model from which to draw."
The part of space within one's immediate vicinity. "Bob never said anything about it in my presence."
A quality of poise and effectiveness that enables a performer to achieve a close relationship with his audience. "Despite being less than five foot, she filled up the theatre with her stage presence."
Something (as a spirit) felt or believed to be present. "I'm convinced that there was a presence in that building that I can't explain, which led to my heroic actions."
A company's business activity in a particular market.
The state of being closely focused on the here and now, not distracted by irrelevant thoughts
Metaphysics of Presence (Wikipedia)
presence as in a "now" and also a presence as in an eternal, always present, as one might associate with God or the "eternal" laws of science
Pattern Expression
All Entities have the trait of presence.
When someone (subject entity) is present in a conversation (containing entity), that person is energetically focused on the conversation.
When someone is not present in a conversation, that person is focused, or shifts focus, on something else.