The dictionary defines verbal communication as the use of sounds and words to express yourself, especially in contrast to using gestures or mannerisms (non-verbal communication).
This style may also include the written word or sign language.
If you use this style, you find it easy to express yourself, both in writing and verbally.
LTP will show you how to improve and refine your communications skills as an instructor for you to have a better chance of excelling on the job.