Here's how I condition my fish (some people do it differently).
I put the male and female near each other (still in their seperate containers). I put a peice of paper to block their view from each other. I feed them lots of protein-rich foods...lots of live foods and frozen (not too much to get them constipated, though) at least 3 times a day. I let them see each other once a day for 15 minutes. They flare at each other and flirt and get all excited, and then the paper is put back in place. I keep their water extra squeaky clean, too. This goes on for about 2 weeks...sometimes less if the female is looking extra eggy.