Best Automatic traffic generator

my friend launched a new ppc site https://www.cutezapads.com and he was asking me if its ok to run automatic traffic generators and which ones are the best to use. Since am new to seo i did not know what to tell him. Any tools or advice is much appreciated.

I wont wanna b ir frnd for sure :O

To begin with, do not share any money site that you/your frnd has.

So he is ripping off advertisers?