In my previous article,i told you the benefit of commenting as a means of building your audience on steemit especially for newbies as it will be important to getting upvotes to your post when you finally post them
You also earn steem when your post is upvotes which is a way to increase your earnings and reputation
When you find a post you want to comment,if it has been previously commented om,check if those that were commented where given any upvotes,if the first three comment were well crafted and didn't receive any upvotes,then you will know that even if you spend your time you want get anything
You should also avoid saying great post instead say what you enjoyed about the post and the benefit you got from the post ,this will make others know you really read about the post and probably give you an upvote