How you hold yourself in an interview can make or break the way the interviewer sees you. This is considered non-verbal communication. Be sure to lean forward, sit properly in the lobby, and mirror the interviewer. Do your best to not: cross your arms, fidget, or make any negative facial expressions. See the below article for more tips about interviewing do's and dont's. Did we miss any tips?
https://www.refinery29.com/en-ca/job-interview-body-language