To be sincere means to be your real self and share from your true feelings.
This is when you are simple, authentic and have genuine concern.
Pitfalls:
A person who is not sincere is unconsciously pretending to be someone else. They are either acting out as their parents or whoever else raised them, in their first seven years, who were not sincere with them. They may be covering something up or being manipulative to you. In their confusion, they have a hidden agenda to make you believe something that is not true. For their own personal convenience, they will try to make you behave in a way not good for you. How can you watch out for this? It is easy if you use your inner sincerity radar system. Being in your true feelings helps you be able to tell if the other person is in their true feelings or not. This is also called inner discernment.
Solutions:
When someone is sincere, they will not be uncomfortable. There is a lightness and openness about them. You can look them in the eye and see straight into their heart. If they look away, it will show you they are not able to withstand it. They will be nervous and tense trying to make you do something for them. If they are sincerely asking for help, they will not turn against you if you say no. However, if they are not sincere, they will blame you for not doing what they want. It is important to understand that a person who is not sincere with you is not sincere with themselves either. This is why it is impossible to please them. Even if you go ahead and do what they want, they will still expect, assume and demand while faulting you for what is not working for them. All you can do is communicate sincerely with the facts. You are only able to help them if they are being sincere with you in return.