Up up UUUUUP the ghost went. Right up through the middle of the Gryffindor table in his usual ceremonial manner and with en especially proud look upon his semitransparent features. Even his ruff seemed a bit more plump than usual - and that was because it most certainly was. Extra fluff per victorious term.

"GOOD EVENING, GRYFFINDORS!" he trumpeted complete with puffed out chest. "Welcome to our newly sorted, those lucky enough to have been granted the right by the Sorting Hat to join the ranks of the wizarding world's most brave of heart! I am Sir Nicholas de Mimsy-Porpington at your service. Resident ghost of Gryffindor Tower."

To conclude, he offered the table a gentleman's bow from the waist. He need not be careful this evening about his head wobbling too much as his ruff was more than sufficient enough to keep it in place.