How do you vote on this site and how do give tumbs up or thumbs down?

Get 250 pts. and you'll be on level 2. Then you can "rate" answers with "thumbs up" and "thumbs down." Just click on the “thumbs up” icon to give someone a “thumbs up” and show you approve of or like their answer; same but reverse meaning with “thumbs down,” click on the icon to show you disapprove or don’t like the answer.. It doesn’t cost you any points to “rate” an answer but, once you do rate, you’re stuck with that rating. You can’t later change your mind and decide they don’t deserve the “thumbs up” or have regrets about giving a “thumbs down.” They’re forever.

Stars are ways to show approval for questions. You click on the star icon to give a star, click on the same place to remove your star after you give it. No points involved..

Answer a question and get 2 pts. Ask a question and lose 5 pts. Choose the "best answer" to your question and get 3 of those 5 pts. back. Be chosen as "best answer" and get 10 pts. plus 1 bonus pt. for each "thumbs up" your answer received. There’s no deduction for “thumbs down.”

Vote for "best answer" on unresolved questions “in voting” and you get 1 pt. per question. You can vote by clicking on the “answer” toolbar at the top of the page then click on the “vote” tab or, when you see the list of questions available in a particular category, there’s a “vote” tab at the top of the questions. Either way, if you vote then you earn a point per question and help pick the “best answer.”

You also get 1 pt. every day for just logging in. It’s as easy as that!

Good luck, you'll be on level 2 in no time and then aim for level 3 (1,000 to 2,499 pts.)

You need to be on level 2 for the thumbs to work.

That feature is blocked to users until they reach Level 2. See http://help.yahoo.com/l/us/yahoo/answers/ratings/ for more instructions regarding ratings.