It could be Carter Page. Snowden may be near the right edge of this pic, appears to be talking to a woman facing away from the camera.
The location of this picture is near 88 Portland St, Hong Kong, looking north. According to Streetview, the signage was drastically reduced sometime after Aug 2011 and prior to Jan 2017. Meaning this photo was taken prior to Jan 2017
This is probably old news, but I found it the hard way, on a map.
Post 869 location is Canton Rd & Nelson Street, Hong Kong. Post 1680 location is Portland & Hamilton, Hong Kong (photo taken prior to Jan 2017). These two locations are within a few blocks of each other.
I believe Snowden (probably) is facing the camera on the sidewalk at the right edge of the street photo in 1680. Assuming he was staying at Canton & Nelson, he was close to home.