A Spy

I feel like there is a SPY in my facebook's friend list.
I don't know who is he/she....
Is the spy is a good person or bad person?
I really don't know....
Do i need to be careful with that spy?
I just act nothing happen?
If for u, what you going to do?
check 1 by 1 all my friends?
LOL!!!!!!
Zzzz..... Nah...
I'm not going to waste my time for doing like that....