I am a firm believer in education and do not hide the fact I have HIV. I disclose to anyone that asks, makes a comment, is nasty, or in general conversation. I do it in a way that it surprises people that I have it and then they want to learn more. So far I have had no one come back at me in a nasty manor.
I do appreciate and understand that for some people this is a very difficult decision to make.

If this is becoming serious it's important that you let him know your status. If he's that good of a friend he will understand. Also it gives him the choice to go any further with you as a potential partner.

I really believe that its total up to you when to discuss your status. Everyone's situation is different. For example: I always have my status on any website I join. I also had an article done on being POZ in my hometown newspaper, had my picture taken with comments I made put into newsletters of organizations I've been involved in and talked about my status in front of thousands of people. That's just me, everyone can't do that for many of reasons. So when you feel it's right for you, do it. You may have to practice talking to someone so you can feel more comfortable talking about your status.

I only disclose to family and some friends or someone I'm going to be intimate with. Anybody else don't get the right or the privilege especially if I'm getting know them as a friend and nothing more at the moment.

I told all my friends and family and got great support but not straight away had to get my head around it first and deal with my own feelings, i find it great to be able to talk to people about hiv i think it really helps me