Remember that you are interviewing to sell yourself and your skills - to show an employer that you are the best candidate for the position. After considering some of the personal issues related to coming out, such as how to talk about or show a GLBT related experience on a resume and how to find an organization that will fit with what you want, you may now begin looking at ways to come out that feel comfortable to you. There is no one way to come out. If you choose not to come out immediately, one strategy you might adopt is to establish yourself in the organization as a professional and then come out. It is even possible to role play coming out to your supervisor with this person.
Most people talk about their personal lives to some extent at work.
The advice you will receive from GLBT professionals on coming out at work will vary considerably. The number one priority is work, not to be social. Your personal life is personal. Keep some kind of boundary or you'll never have a vacation. Don't carry your work home or your personal life to work.