Pay attention to body language interlocutor in the dialogue process, and you will know what emotion causes a person to your conversation. If a person who is usually a lot of gesturing, sitting without moving, then he fascinated by your words. If your partner taps his fingertips on the table, pulls the handle or lock of hair - he frankly boring, and he wants to talk soon ended. Also, he probably feels mistrust your words. If your opponent is sitting with the cross arm or leg - he is emotionally protected from you, and you'd better change the subject.
If after your conversation a person avoids looking you in the eye, makes monotonous repetitive movements - enumerates beads, combs her hair, he doubts and have not yet received any positive or negative decision. However, if people started glancing toward the exit - guard, he is inclined to disagree with you.
When you finish a call at parting your opponent touches the face - ear, mouth - then he took your words negatively, or not to believe you. If goodbye man patted you on the shoulder - you know, he is experiencing emotional lift. Embrace show positive emotional state and trust, because people lets you into his personal space, and you should appreciate it.