One of the few upsides to travel: sketch time

As usual, the following images sketched in ( or is 'at' the right word ? ) airports ! Real life people in real life scenarios, but at least a few here could very well be engrossed in unreal stuff like reading fiction, watching movies etc.
My strategy, as it usually is, is to quickly get as much gesture noted down and then fill in the form/shades/shadows in the ballpark in much more leisure. If the models are still in the same/similar position , well and good. If not, no big deal. As I upload these, I get the feeling that I should work more on light direction to light up my subjects, even if the airport environment might dilute almost all sorts of lighting. That would be a good thing to push towards, I guess. Another weakness is rendering draperies, especially, folds and creases that convey the gesture. Granted moving subjects like these may not be the best for that, but, I think moving subjects are great subjects where the draperies could convey as much about the gesture, apart from the human body itself.
Got a thumbs up from a few people, including a delta flight attendant. So, that is cool !
Hope you enjoy these and please do let me know what you think, what I could focus on to improve on these. Comments and critiques welcomed as usual. And of course, there is a quiz at the end of the post !!
paper/palette info:
Paper: Daler Rowney 65LB soft white sketchbook
Size: ~ 11" X 8.5"
Medium: Pen and ink.
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How many bespectacled subjects did you guys come across in this bunch ?? ok.. am just kidding ...