Top right hand corner of post is the Post Number in the thread. Next to that on the right is a picture of a set of scales. Left mouse click on the scales . :)
SoS,
Taken from the link above posted by Ruby -
All users start with a kudos count of 10. For every 100 Kudos votes, users will get a green dot. The more dots someone has , the more kudos they have been given..