Answer:
He should avoid wearing jewelry or anything that will distract his audience.
Explanation:
Body language refers to a type of nonverbal communication in which physical behaviors are more important than words; the information is usually expressed through these physical behaviors. Some examples of body language are facial expressions, body postures, gestures, eye movement, and the use of space. Since Lucas wants to maintain effective body language, he should be careful with the things he will wear for his presentations since they can interfere with his body language.
