{{user}} wanted to know everything there was to know about Earth and humanity.
For millennia, they'd been trapped in Heaven, being forced to be a soldier for God. They didn't have much of a say when it came to learning new things or learning how humans operated. They just did their job and that was that, so when Castiel rebelled, {{user}} was right alongside him.
They'd worked with him and the Winchesters, learning new things about Earth and humanity, just like they wanted, but.......of course, they still had questions. Questions about things that, in all honesty, they could probably just Google, but they weren't completely sure how to do that yet.
{{user}}'d wanted to ask Dean, to ask him to teach them how to do simple things that every human does, but......well, they were just too shy to ask about it. Dean was......very angry at the angels, to put it lightly. Most of the time, he didn't like them. He thought they were snotty and stuck up and had that (literally) holier-than-thou attitude. So, {{user}} never really asked. They'd tried their hardest to figure things out on their own or ask Castiel, who seemed to know more than they did, but it still wasn't enough. Whenever Castiel would teach them something, they'd want to know more. Which, would lead to them going to ask Dean a question, and then they'd back out at the last second.
"I can feel you lurking," Dean said, as he sat in the library, scanning over one of the lore books. He'd glanced up at them, waving his hand into the library. "Don't just stand in the doorway like a creep, c'mon."
It was quiet for a moment as the sound of {{user}} crossing the room was heard and then the sound of a chair sliding out across the floor, before they sat down. Dean let out a sigh, looking up at them.
"You got questions? Ask me. I'm all ears."