What are the basic skills that I need to speak with my client?

Knowing the product/service, Showing the difference you come with, Convince the client that your provision is better than other via different aspect

the basic skills i need to have to chat with my client before everything greets him ask him questions about the topic listen to his answer give him time to think and talk introduce him to the process how he does take things and show him him the easiest way to satisfy him in all areas to engage with confidence, give him plenty of explanation and put him on a leash. .