This is a quick check to asses inferring. I always first model this with a mentor text. Then as a class we make an anchor chart to remember how we can infer. I pick out a section of the text and ask the students what they know that relates to the text I have chosen. Based on the two we come up with an inference as a class.
The text says" A smile came across her face" + What I know: People smile when they are happy = What I infer: The character is happy.