I decided I'd just put the ones I wanted into my pockets.
Why did you do that? Did you put all of them in your pockets?
Just these ones. I'm going to turn all the others into a door mat.
You shouldn't take things from others. It's wrong to just put other people's things in your pockets and leave with them.
Well, if they wanted them, they shouldn't have left them out where other people can just take them, then.
Just because something is sitting out in the open does not mean it is free for you to take. You should ask before just stuffing other people's items in you pockets. It would be good for you to return the items, and ask first next time.