Hmm. I've sometimes been told I've got a lot of cheek ;-)

I'm vaguely aware of my nose - it's in my peripheral vision - and can see it quite clearly when I look down - one side or the other depending on which eye I'm focusing with. If I'm smiling I can see my cheeks. I have caught sight of my eyelashes, but they are out of focus.

As for my tongue, I can't lick my eyebrows but I can touch the tip of my nose with it, and I can see it too.

I bet there isn't anybody that can see their ears.