When a D'Amico awkwardly touches you. The D'Amico in question thinks it is simply a casual touch, but to everyone else around, its a blatantly obvious statement that they want you bad.
These touches become especially awkward when the victim has no desire to mate with the D'Amico. Avoiding close proximity to the D'Amico is the safest course.
I was talking with all my friends, when that D'Amico girl pulled a "D'Amico Touch" on my shoulder. Everyone knew what she was up to, and I totally did not approve! Needless to say, awkwardness ensued.