the feeling when a person has a talk with me is completely different from that when he just send you a email

maybe communication will be more efficient if a person not only sends a email to you ,but contacts with you by phone or actually meets you and chats with you face to face. when I receive somebody's email, I always feel numb and are not able to understand the true meaning underlying those sentences, and I tend to guess the implicit and subtle meaning of the sender , which is not bare true in fact.