Hi Ms KwanXin U’re perfectly corrects regarding the Art of Orally speaking.I’m very lucky of having the proper ways of talking n speaking naturally since l was young.I remembered l was able to convinces twice the 2 Medical Officers transferred me from Combat Medic to services Medical Staff in medical Center.That was how l had buildups the Medical’s Knowledges where after my N.S l started to run the TCM n Western Medical’s businesses for 40yrs.All because of having the Art of Talking n Speaking to Customers can easily convinced them to buy the products