Creating the right mood before you begin essentially sets the tone for the whole night. You should consider this on two levels: physical and emotional. If you're planning to have the sleepover at your house, buy a few candles, a bottle of wine or whiskey, and make sure your playlist is stocked with the Weeknd and Miguel tracks, not Lil' Wayne and The Beatles. If you're going somewhere, bring the necessary supplies with you. Consider getting a hotel room for the nighta place none of you have been can be exciting and lead to an even wilder night. It also has the added bonus of ensuring you don't feel squeamish the next time you lay on your couch.

All of the above will lighten the mood and hopefully get the participating parties comfortable enough to start talking. It's okay to talk about topics that might seem a little mundane, like a restaurant you recently visited, or an artist you're into, as a way to soften the mood. Start by subtly flirting—you'll be on your way to undressing soon enough.