As has been mentioned, there is at least one other picture of the event available. It shows Conway (who is not now a spokesperson for the orange one, but instead is a counselor to him) taking a picture. I assume that it was taken just before the picture in question was taken. She was likely either looking at the picture she had taken to see if it had worked out or was trying to send it off on social media.
While I find it a bit rude in general to stare at your phone with others in the room, I can understand why she was doing that, especially if she did it just briefly.
However, the issue with her feet up on the sofa (with or without shoes) show either an incredible lack of class for someone among the donald's inner circle (which isn't surprising and is on par with the rest of the swamp creatures that he has surrounded himself with), or it shows an intense lack of respect for the guests, for the surrounding, and for the occasion. I cannot think of any possible reason that could require her to sit on her feet. It's truly vulgar, given the occasion.
There's also a back story to this. Right-wingers went ballistic when a picture of then-President Obama was published, showing him with his feet up on the Oval Office desk while talking to a small number of his staff members. They also went ballistic, and some in Israel were incensed, when a picture was taken of him with is feet on the desk when he was supposedly talking on the phone to Prime Minister Netanyahu. The right didn't care about the fact that there were pictures taken of G.W. Bush and G. Ford doing exactly the same thing in the same setting.
