First, read the English article below.

Communication is the process of transferring signals/messages between a sender and a receiver through various methods (written words, nonverbal cues, spoken words). It is also the mechanism we use to establish and modify relationships. Be confident in knowing that you can make worthwhile contributions to conversation. Take time each day to be aware of your opinions and feelings so you can adequately convey them to others. Individuals who are hesitant to speak because they do not feel their input would be worthwhile need not fear. What is important or worthwhile to one person may not be to another and may be more so to someone else. Developing advanced communication skills begins with simple interactions. Communication skills can be practiced every day in settings that range from the social to the professional. New skills take time to refine, but each time you use your communication skills, you open yourself to opportunities and future partnerships. 

Now, please write a short abstract for it in Vietnamese. Abstract:
Biết được giao tiếp thực sự là gì. Có can đảm để nói những gì bạn nghĩ. Luyện tập.