Media Literacy: the ability to critically analyze stories presented in the mass media and to determine their accuracy or credibility. (Google)
In order to be media literate, practice the READ test, lateral reading, and critical thinking!
Relevance: is the piece of media relevant or related to your needs?
Expertise: who is responsible for the media? Are they experts on the topic? How do you know?
Accessibility: can you understand it?
Accuracy: is the information truthful?
Date: how old is it? What does that tell you about the piece of media? How does the age impact its meaning and how you use it?