Have you ever told a lie to someone? In my opinion, no one haven't lied to someone to protect ourselves and companies, to make ourselves look cooler than we are and so on. Actually, I've lied to my parents, teacher and friends even though I know lying is not good. The more I lie to them, the more I have to keep telling a lie. Finally, it make me a liar.
One day when I didn't go to school I told my mom " I went to school and take classes like as usual." when I was a junior high school student. I told her as if I went to school even though she already knew what I hadn't gone school. According to her, I blushed, stuttered and tried to avert my gaze from mom while I was talking. So, I couldn't manipulate myself. It is outrightclue which she realize what I lied to her. It was insurmountable for me to tell a lie to mom, because she understand my personality and habit.
When my friend told me whether her boyfriend cheat on her, I told her "I don't think so, I'm sure he loves you." even though I had seen that he had been with another girl. In my opinion, she would feel hurt if I told her the truth. However, the concealment is not good for her, because she finally realized that and was wounded. If I hadn't covered up, she wouldn't have been wounded.
It's very harder to keep telling a lie than telling the truth. You have to realize that when you tell a lie.