Question re: traffic trades

[codymc12]

Been in the biz for over 6 years, but have never pursued the concept of building trades, via TT scripts, etc.

How does that work, exactly? You build, say, an MGP site - not going to have any traffic to begin with, so no one is going to want to trade with you, right?

So what do you do - buy traffic over a 30 day period or something, to get things going?

I'm talking above and beyond the usual of SE's, link trades, and so on. It's all greek to me, so if anyone has any pointers, that would be great.