Definition of inference is a conclusion reached on the basis of evidence and reasoning.
Example-"My breath caught in my throat as the teacher called my name. “Here,” I choked out, and she breezed on to the next.
It’s ridiculous, I know, to get so worked up about attendance, but this simple ritual used to terrify me. All I needed to say was “here,” but it felt like a performance. Speaking in front of others used to be so frightening that I avoided speech class, a freshman class, until junior year. I never made new friends because I was too anxious to talk to anybody or even make eye contact.
From this text i can infer that author is a pissimist based on text author don't seeing any pasetve moments in his live.