Interactions With Fans Before Entering Venue?

[westdodger]

Hey, ladies and gents.

 

Just wondering if the guys have stopped to take pictures, sign autographs, or talk with fans prior to entering any of the venues on their North American tour. I know the NA leg has just started so there may not be many things to report as of yet, but it looks like there may have been some instances of fan interaction prior to a few of the shows in Europe. U2 (as an example) has done this more than a few times on their last few tours, but I don't remember what Coldplay's involvement has been in the past in terms of pre-show fan interactions. Feel free to add any insight you may have. Thanks!