This is how I am. You say you’re comfortable with them and explain they’ve never brought it up. You can be yourself with them, so you’re all natural. We all have different mindsets about how we handle ourselves, and I am always admittedly more focused on fluency with others whom I’m not as comfortable with. Our fear of not knowing how people will react to it is the root here. Be yourself always, then gravitate to those who respond well to your un-inhibited self.