“Polite and sincere” flirting: Doesn’t sound all that fun, but that’s the technique you should use if you want to attract a long-term partner. “Playful and physical” flirtation, on the other hand, will lead to shorter, more casual relationships, according to a new study based on a survey of 5,100 people. The lead researcher notes that if you’re not happy with the type of people you attract, you may want to switch styles, the Telegraph notes.