Head & Shoulders

A blonde and a brunette are both in an elevator.
On the third floor a man gets on who's perfect: Italian suit, handsome, great build with a nice butt, but unfortunately they both notice he has a bad case of dandruff.
The man gets off on the 5th floor.
Once the doors close, the brunette turns to the blonde and says,
"Someone should give him Head & Shoulders."
To which the blonde replies, "How do you give Shoulders?"