At first, a high-functioning sociopath could appear charming, but their intentions are selfish, manipulative, and may even be dangerous...
They think and act without regard for others, and their behavior may include lying, cheating, and manipulating for personal gain. Typically, their narcissism and lack of remorse allows them to achieve their desires...
Lack of empathy: They find it difficult to empathize with others or understand the emotional consequences of their actions.
Narcissism: They often have strong self-love and grandiose self-image. This occurs because of low esteem and delusional beliefs.
Charming: Although most sociopaths lack empathy, they are capable of mimicking and manipulating emotions to appear charming and normal.
Secretive: A sociopath doesn't feel the need to share intimate details with others- unless they are using them to manipulate others.
Sexually deviant: Since they lack guilt, remorse, and emotional attachments, high-functioning sociopaths tend to have affairs and engage in the questionable sexual activity.
Sensitive to criticism: Despite their lack of empathy, sociopaths desire the approval of others. They feel entitled to admiration and are quick to anger when criticized.
Impulsive behavior: Sociopaths often live in the moment and will do what they feel is needed to reach their immediate goals.
Compulsive lying: They will often disregard the truth to make themselves look better or get what they want.
Needing constant stimulation: Sociopaths often get bored easily and need to be actively engaged...
High-functioning sociopaths may also participate in more serious crimes.
Protecting Yourself From a High-Functioning Sociopath
Remove them from your life. This may sound harsh and drastic, but it is the best way to protect yourself. Sociopaths' minds operate differently. They will not feel the same emotions you would if someone immediately decided to leave your life.
Know you can't fix a sociopath. There is no "cure" for a sociopath. As mentioned above, it is a long, difficult process to help a sociopath lessen their symptoms. Chances are you may not have the knowledge or resources to give this person proper help, and most sociopaths have no desire to be helped. Without that desire, any form of treatment is useless. Believing you can "fix" a sociopath will only lead to failure and frustration.
Don't make agreements or deals with a sociopath. The sociopath is looking out for his or her best interests and has no desire to accommodate your needs. If they come at you with "you owe me," remember this line has been used by sociopaths for years.