Social media managers should practice what they preach. You can ask to see their blog in action and see if they are posting regularly. Being a social media manager is about so much more than updating Facebook and Twitter. Content should be balanced, otherwise your social streams will either be giant advertisements or lists of interesting articles that they came across.

A good social media manager will be able to write effectively, allowing you to have a constant stream of interesting and engaging articles. They will also be SEO savvy and content will be optimised to have the right keywords in the right place, ultimately linking back to your business. You can ask to see what articles the social media manager has already written so you can determine whether or not their style of writing would fit your business.