How did you know you were hired after going to the interview? Did someone tell you at that time, or did you call afterwards?

It also depends on the specific situation. If the interviewer has full authority, he may politely tell the interviewer to go back and wait for the call, or he may stay and make a comparison before choosing, or he may be too satisfied to find a better one and let you know. If the interviewer just doesn't have the power to appoint or dismiss the company, he may just collect some information for the company and then let the leader review it. After the leader is selected, the personnel will make an employment notice, hoping to solve your doubts.