Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to use twitter if you're an author [title] Choose a twitter username that users can recognize. [step] This will allow fans, colleagues, and other twitter users in your industry to locate and follow your twitter profile. For example, if you typically write books under a pseudonym, use that pseudonym as your twitter username.

Ending1: [substeps] You don't need to use your first and last name to go with your twitter username. [title] Don't ask friends, classmates, and colleagues if your twitter account is verified. Ending2: However, if you're not an author, use an author's first and last name whenever you begin twitter. [substeps] The first two letters of the username can be used to identify your twitter followers. Ending3: To avoid usernames that are easily guessed, check to see if the name matches the niche of the author you are writing about. [substeps] You might ask one of your colleagues or books-writing teachers for suggestions or advice on how to spell out the username. Ending4: [title] Publish author-related information about yourself in your twitter profile. [step] This will provide twitter users with information about your niche, and can also help clarify your identity if your name is common.

Answer format: ending1/ending2/ending3/ending4