[juhzy]

I'm sure your eyes and nose, which you probably don't cover, are more than enough to recognise you.

I think it would be more effective to wear big eyeglasses (like Wayfarers) but I'm not sure, maybe someone can chime in?

[jeofken]

I try to cover up as much as I can. Sunglasses are a good idea.

Regarding sunglasses in Berlin, police stopped me on my e-moped recently and forced me into a restaurant bathroom to do a pee test for drugs, and they told me the reason was that I wore sunglasses when riding and thus looked suspicious. I wear then to protect my eyes from dust and bugs. I was absolutely sober, and going home from church. My takeaway is, Berlin police want your face.