If you are meeting in a conference room, rather than sitting directly across from the client, sit at the end with the client on your left. Speaking to someone on your left shows your willingness to be open to them. When greeting your clients be warm and friendly. Don't rush right to the point. Some congenial conversation will take the edge off the meeting.
People have the greatest rapport with others they perceive to be like themselves.
Look for opportunities to connect with things that are personal and positive in your clients' lives. Show enthusiasm and interest in things they enjoy. If you share a common interest such as golf, sailing, auto racing, baseball or gardening, let the client know you share their enthusiasm. Most people constantly give clues about how to connect with them because they want to be liked. If you show an interest in the things that give them passion, they will perceive you as a person who cares about them.