When you talk with an stranger, you can not get acquaint with he or she with the voice or their handwriting. When you meet someone and ready to talk face to face. When you see your "target", before you design your words, you can use your eyes to scan and guess his or her character. then, during the communication you can check whether your prediction is correct. It is interesting, because sometime you will find, the different is very big. After a face to face communication, a guy who you don't like when you see him/her with first eye finally become your best friend. this feeling is wonderful.So, i like to talk face to face.