Visit a Starbucks branch after you submit your vote this May 9.
From their Fb page - If you care enough to vote, we care enough to treat you. Simply present your voting finger with indelible ink on May 9 and avail of our One for You, One to Share promo on the Chocolate Hazelnut Macchiato or Roasted Caramel Macchiato.
(Offer is valid for hot, iced and blended variants)
from Tumblr http://popazrael.tumblr.com/post/143664169571