I put my feet on my chair when I eat but I do that in my own home not while I am a guest in someone's house and certainly not while I am in a restaurant.

I also put my feet on my chair when I watch television but I do not when I watch a movie in a theatre.

And when I'm in my house I always stay in my pajama but when I go out I put some clothes on (i may look like a bum sometimes but at least its clothes not pjs).