[header] How to answer questions on yahoo! Answers [title] Create an account or sign in. [step] Click " sign in " at the upper right. You can either sign in with an existing account or create a new one. 
[substeps] If you have an account on facebook or google +, then you can sign into one of those accounts and therefore won't have to go through the trouble of making a new account. [title] Choose a category from the menu on the left side of the page.