Before you complain that George R.R. Martin is living it up at Comic-Con this weekend instead of finishing the Winds of fucking Winter already, consider that he's just doing some important character research. To understand Daenerys Targaryen, he must become Daenerys Targaryen.
You just know he's planning on taking that standee home with him after the con.
Seriously, though, GRRM was there for a panel on his comics work. He had his publicist snap a silly photo to send to his wife, and now you know more than you ever wanted to about George R.R. Martin's private sexts.