sitting across from some1

I just don't know how to act when I'm sitting across from someone and there is silence/no one's talking!! I feel like I'm creating such awkwardness by constantly avoiding looking at them and I always feel like they're looking at me. Then I feel like I would be creating even much more awkwardness...

I absolutely can't stand sitting across from someone. I doesn't matter who I'm with, it can be someone I don't know in a waiting room or bus or it can be my own family while eating dinner. When I'm eating with my family at home, I keep my head down looking at my food the whole time unless...