One of the first key things to do after a job interview is to send a personalized letter to each interviewer. Candidates should thank the interviewer for the opportunity and reference a personal anecdote or element of the interview experience that was positive.
When applicable, candidates can send follow-up materials, such as reference letters, work samples and documentation, that support information provided during the interview. A follow-up phone call is often okay, but it is generally recommended to wait until after the point at which the hiring manager said he would call. When a second interview is likely, interviewees can begin practicing for more advanced questions.