Sunbathe was an emote available throughout August and September 2012. It was obtained by claiming a Sunbathe emote ticket, an item that was temporarily available from the Squeal of Fortune and available once again on Treasure Hunter's Blast From The Past promotion on 27 February through 3 March 2014.
When used, the player unrolls a towel and then lies on it. A small sun appears overhead while the player stretches and then rolls the towel back up.
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Blast from the Past