Getting a recommendation from a friend or work colleague is an excellent way to find a good agent. Be sure to ask if they would use the agent again. You also can call the managers of reputable real estate firms and ask them for recommendations of agents who have worked in your neighborhood. In any case, whether you are a buyer or a seller, you should interview at least three agents to give yourself a choice.
A good agent typically works full-time and has several years of experience. If you are a seller, you should expect to review a comparative market analysis, which includes recent home sale prices in your area, when you talk to a prospective agent.