Starbucks is offering a FREE drink to Reward Card Members on their birthday. to get in on this offer, visit starbucks.com/card and provide you birthday, a mailing address, and opt-in for mailings from Starbucks to get a printable coupon, redeemable at any participating Starbucks location. This offer applies to any drink of your choosing. Starbucks Reward Card membership is FREE. Signup at starbucks.com/card, if you are not already a member.