When you ceck in, mention to the CM when your DD's B-day is and maybe the characters will send her a B-day card and balloons. When you are going to the MK, go to City Hall and get a birthday button for her to wear..special things may happen. One note, even if you aren't planning to be in the MK on her actual B-day, pick up the badge at the MK (can't get it in any of the other parks) and have her wear it in whatever parks you may be in. We stayed at ASMu
for my DH's B-day one year and when we came back from the parks we found the card and balloons. Maybe if you pack presents and give them to the front desk, they can put them in the room with the cards while you are away at the parks. Have a great time!!