3. Smile A Lot. Be Coy. We know, it sounds cheesy and anti-feminist, but it works wonders in person. The smile you give to the person you’re interested in says you’re nice people, you’re friendly, you’re approachable and willing to engage in the flirting game. It doesn’t have to be at a Julia Roberts wattage-level event, but a sincere smile with a hint of the coquettish will do.