Why's body language important, how to ensure a positive one?

"You got good oratory skills, but your body language needs to improve." Do you often hear people telling that to you? People may not have great communication skills, but their body language has to speak on their behalf. One's body language lets them communicate nonverbally based on which others form impressions about that person, too. So, the body language you use is very important.

source https://www.newsbytesapp.com/news/lifestyle/what-to-do-to-ensure-proper-body-language/story