I think you've a special coping mechanism! You're creative! I think your way can boost confidence. For me, if I imagine to have someone next to me, I know I'd feel more confident.

I drag going out to places or cafes, especially with crowds, if I am going alone. If I must then I usually bring a book or a laptop or a tablet or a phone, something that I can use to shield me from looking like I'm isolated by the people around me.