PR Links

Hello All
So still being the noob that I am, and on my way to a more experienced noob, i have a few questions.
I have seen many many posts on here about selling PR6 links and do follow and no follow links.

My question -
What the hell do those mean?
I have not bothered to look on Google, as I am wanting BHW to help me
If i buy PR links from someone what do i do with them?
What does no follow and do follow links do?

Appreciate it!

Seriously?

I have no problem helping people out, but the only way I can see to possibly help you is to tell you this:

You will never make it in IM if you can't use google to search for "what is pagerank" and "do follow vs nofollow"

You can find those answers instantly...

Pagerank is given by google, it's about how much does google trust you (in some way).
No-follow - the spiders wont follow the link.
Do-follow - the spiders will follow the link.
Period.