I promptly lose my ability to type because "Eeeee! Approaching pretty!". Wrap-up takes twice as long because I also lose the ability to think straight because Oh dear lord he's sitting down on my desk and looking at me, and oh god I can't handle this what if he talks to me! Which he does. Of course. Smiles at me (*melt*) and says "I haven't seen you around before. New?".
Me : "Gur..."
He introduces himself and asks my name.
Him: "Are you always this articulate?"
My brain: He made a joke! Quick, laugh. Make a joke. Do something! Oh gods, say something!
"I have daisies!"
My brain: I hate you.
Him: Oooohkay. See you around then.
Context will laugh at this one day, I am sure of it QWP :)