Hussar
Legend
Lots of things. Point to something in your background that might give you the info. Point to a skill you have that might give you the info. Point to something that has happened in game play that might give you the info.
Even something as simple as where you're from might do it.
ROTFLMAO.
So, I can point to a relevant skill on my character sheet, but, I can't ask for a roll on that skill?