In this game, you just make a nice comment about the person above you.
For example:
<Poster1>
Start
<Poster2>
^ has a great thread idea
<Poster3>
^ has a great taste of hats
<Poster2>
^ is good at decorating, despite being a heterosexual
<Poster1>
^ has a reasonably sized nose.
<ETC...>

That's it, me, being the exciting top, will wait for your complements! :)
BTH, who ever posts under me is teh awesome.