Doing nothing ='(

In fact, I also don't know why I'll be here~
somemore I feel like I'm nothing in the office~ especially I have done all the things that my boss asked me to do and I saw other clerks seem like very busy..
Me? yea, online + facebook + even bring along the notes and study...
I don't mind he gave me lot of jobs to do and busy like hell,
yet, I just don't hope to facing some of the questions as like others keep on asking me: "Is he got lot of things to do?" or "He pay you sat here?"
yea, that's what another people ask me just now again..
Without doubt, my boss and even some of my colleagues ask me just ignore them,
don't bother what they said and ask..
But the problem is, I can't ignore my self-respect...
that is I need to help people do something as the person pay me!

I understand my boss is trying to help me...
He knew I'm facing financial problem so that he offer me as his assistant,
but then I really hope that I can help but not just sat over there and do nothing!
I hope to find someone chat, but then I can't be the one who disturbing those who busy..
plus, I'm not asking to chat and talk lots with salary given..
So I choose to be quiet, online and study at the corner..
but some of them keep on came near to me and see what I'm busying for?
To be honestly, I even started to feel embarrassed when I was sitting there...

Haiz... I'm very unhappy now!!! ='(