Final answer:
The key characteristic that surgical technologists should exhibit and improve on is technical and physical proficiencies, such as aseptic technique and the ability to create and maintain a sterile field. They also need to be skilled in using modern engineering tools for their practice.
Step-by-step explanation:
A key characteristic that the surgical technologist should exhibit and constantly improve on is technical and physical proficiencies. This includes the ability to memorize and interpret dialogue, physical awareness and stamina, expressive freedom and flexibility, relaxation and open readiness. Surgical technologists need to have a strong understanding of aseptic technique and be able to create and maintain a sterile field during surgeries. They also need to be proficient in using modern engineering tools necessary for their practice.