You can recognize these types of peoples by their level of thinking and behavior with you. Fake peoples may be harmful for you at any time in your life. They will not think about yourself, they just think about their benefits. 

If you want to check the quality of diamond then you have to wait the night otherwise the pieces of glass also shine in the sunlight.

Fake person will always use you I'm every way. They will contact you while they need you. They will become invisible while you will need them. You can't imagine how other people can use you. You have no idea about that.

Fake people always behave that other like them. They want to look as cool dude in font of others, will react as familiar with you.

Once I met a girl and her twin sister. They were studying in a college. They lived in the hostel. Both were living together in a same room. I started conversation with them. In the starting they told me something about herself like - they are simple girl, they never talk to any boys excluding me, we love our family too much, we are not like other girls, she never abuse to anyone etc. I believed them at that time. After some days I asked for their pictures she said, "we never send our pictures to any unknown persons weather we never share our pictures with our friends too. I tried to convinced her but she denied to send me pictures then I said, "if I'm unknown for you then why are you talking me?" She said nothing then I stopped conversation with them but after some times she send me pictures of them. I thought I'm not unknown for them and I felt very happy at that time. 

We continue our conversation and I saw her pictures on Instagram on her friend's profile, I take screenshot and asked her, "you said you never share your pictures with anyone and also with their friends too, now what is this?" Then she gave me a rude answer, " that's our pictures, we don't have any problem by sharing our pictures and they are my friends, I can't stop them to share our pictures". I was speechless at that time and again decided to stop conversation with them so I blocked them from everywhere but she convinced me too continue our conversation. 

After some days I saw the screenshot of their chats and in that chats there were some boys too. After seeing it my head got stuck. I asked about it to her, she again said that, " what's wrong in talking with boys, he's just my friend and who the hell are you to asking me this. It's our life we will talk with anyone, you shouldn't have any problem".

Exactly I'm nothing to ask you these questions but I want to know what's the need to show the fakeness to me. I had no problem with that girl but problem was that she lied on me to use me. She wanted my all faith by that fake image. 

After that she abuse me lot.

Continue.........