Sadly enough the journal that reblogged with the Meta has been deleted so I can't really give accurate credit except salty-anno is the one who provided the meta by reblogging another post talking about how Lucifer stands/walks.
Here's an excerpt:
Mark Pellegrino plays a flawless Lucifer.
Does everybody remember the perching thing?
Perching? What's that? To read more of it click on this link: here It's actually very interesting and it makes a lot of sense.