Can someone give me information on the "One Direction: Twitter Questions" thing they do at concerts?

[Mia]

I'm going to a One Direction concert in just a couple weeks. I want to send in a question for the Twitter Questions Session they do during each concert, but I can't find any information on it... Please help me out!

1. When do you send the questions in?
2. Who do you send the questions to?
3. Where/how do you write your seat and row number?

Thank you!

[Devon]

Follow the onedirection account on twitter. Depending on the day of your concert, they will announce when you can send in your questions. You just tweet your questions with the given hashtag (#1DHQ i think) and include your seats at the end.

Ex:

#1DHQ Why is Niall Horan such a sexy mofo? Section 106 Row 18 Seat 4