Words, the words that are spoken or written to convey the message.
Visuals. The visual aids (pictures, videos, and charts)that help understand the message.
Voice. The tone, inflection, and volume of the voice used to deliver the message.
Face. The facial expressions such as smiles, frowns, raised eyebrows, pouts, and all the gestures we make with our face while delivering a message.
Body Language. The position and movement of the arms, shoulders, legs, head and other body language.
Presence. This includes all the conditions of the room or shared space that may affect the communication. Noise, likes and dislikes for a person in the room, proximity to other people in the room, temperature, smells, what others are doing while the communication is taking place.