My ex's came in both my face and in my mouth. I'd say probably face more.
A lot of the time it was dependent on what we were doing. If we were fucking I'd usually "beg" them to cum in my face. If I was just blowing them, I left it up to them.
lol again depends on the situation. A mixture of both.
Yes, in an alley way was probably the most risky. I've done it on a fairly secluded beach, in a park, starbucks bathrooms etc. Nothing too public