How do you get referrals?

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In PTC you need referrals to start earning more than 4c a day. So how do you get them? Pls share your experiance. I bought 10 guaranteed signups pack at theclickers but people just won't join. I am also promoting referral links on trafic exchanges, on my site(see my profile), i even made some banners of my own to refer people. So far i have 4 referrals at neobux(one is clicking), and 2 at upbux(clicking so far).