Island 
Sassette is one of the many preminmum characters in the game, she costs 30 
, and walks around your Island village. Just like Smurfette, she gets a heart above her head every few hours, once you tap on it, nearby smurfs will giggle instead of swooning(swooning only happens with Smurfette) and award you 40 XP per smurf. If you place her hut next to Slouchy's and Snappy's, you'll earn 350 XP daily, not only that, the smurflings will do a short dance with music aswell.