How do you vote for who you think has the best answer when you're not the one asking the question?

Question

How do you vote for who you think has the best answer when you're not the one asking the question?

Answer 1

If the asker doesn't pick the best answer before the "open" time runs out, then you can go back and vote then.

Meanwhile, you can give a thumbs up or down while the question is still open.

Answer 2

You must be a level 2.  Then, you go to the "discover" section and choose Vote.

Answer 3

Give them a thumbs up. You can also go vote the undecided questions by clicking on that tab and choosing which answer you like best.

Answer 4

It's strictly your opinion.

Answer 5

You have to earn a certain # of pts before Yahoo will allow you to do that.