If I don't have to actually touch the icky substance of whatever the black splotch is, I try picking up the glittery thing, and the scribbly thing they write on.

I peer around the area again, just in case someone came out of nowhere, observing me, scribbling as they always do or.. worse.

(Assuming no one's really there and nothing much happens) I take a closer look at these objects I just picked up, for the first time in my hands.