Well, we clearly do use demonstrative reference. That's how we refer to things.
I guess the issue is whether we're referring to something that actually exists or something in our own minds, as an idealist would say.
The naive realist using that as evidence for their theory seems rather circular to me.
As for being directly aware of something, we'd be aware of it whether it existed purely in our minds or in an external physical world.
( my other username is a porsche , posting shit pictures so you don't have to, Tue 16 Jun 2009, 19:56, archived)