Hi, i am a muslim girl and thank you for respecting my religion. you see, in Islam we have the right to choose. Those who cover their whole face probably doesnt want their face to be seen. Mostly they wear this as their desire,but some wear because maybe their family are very strict and demand that they wear it.me, i dont cover my face but i do cover my hair.we cover these specified parts of our body for a reason.our(woman) body parts are consider precious and should not be seen by men,if they do, its a sin to both the woman and also the man.But the main part that should be cover are the whole body except hands,feet,and face.so those who covers face are consider better.men also have to cover their body parts but they are not as strict as the woman.however there are some that doesnt follow these rules.