Thank posts?

[SaxoSammyVTR]

Hi there! Not long signed up to this site but its already giving me good results!
But ive noticed there is this 'thank posts' thing but im not sure what it is. So how do I thank people for there posts?
Thank you :y:

[Prickle]

Thanking people for their helpful post.

Its besides the quote button in the tech sections.