You don't have to force anything, just slip flirts in as bad jokes. Some girl I see every day put on make up for the first time, and I just made some stupid joke about how she wanted to look cute for me. Enough to make her blush, enough to not make me feel sick or feel like I'm forcing a flirt. Just subtle things like that work fine. But I mean, my advice could suck because I'm not the kind of person to blurt out hay u hav pretty eyez llozlozlo, and it could play a factor in why I'm still single.
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If Jesus died for my sins, then I should sin as much as possible, so he didn't die for nothing.