Why women/Girls lie ?

People; irrespective of gender, caste, race, religion, nationality and all other terms over which we become bias; lie because of insecurity. It is human nature to be insecure, for instance, people are insecu of their relationships, career and several other things. Due to such causes leading to insecurity, people intending to run away from truth, tend to lie.

Not only girl/women lies irrespective of gender any one lie when the situation demands.

It depends on one's nature, not only girls lie but boys can also lie.

Speaking lie is one of the human traits. By saying human traits I mean to say that under human males and females both are included so the trait is also common. It cannot be said that females are greater liar than the males. It all depends upon an individual's thought process. 

I have a feeling that they do not know what to say when stuck in a situation that they do not like.

Every person less or more lie. It is not fair to say women and girls are habitual of telling lie.

 I think lying is not restricted to any gender. It is one of human tendancy. In college, many times it happens that girls lie to show the reputation or want to attract boys towards them. Same way even boys does the same thing. 

Telling lie is a habit of some people. They always tell lie without any reason even if the matter is very simple. Some people tell lies in certain circumstances to maintain their status in the society. Children often lie to avoid scolding from elders whenever they do any mistakes. Telling lie is a natural process. This is not only the habit of female but also the habit of male.

It's a habit we cannot relate with girls or boys in particular. Anyone can do that irrespective of their gender related specification.

Both men and women saying lie depends upon the situation. If they feel that by saying the truth it will bring some issues immediately and wants to postpone it and tell the matter in a clam and peace environment. So both telling lie to avoid immediate quarrel between them.