"The proposer of the toast engages the eye of the person being toasted, and 'skoal' is said. A slight bow of the head, and a twinkle of the eye—and the aquavit is drained in one gulp (if the drink is wine, a sip is taken). Just before the glass is put back on the table, the eyes meet again and there is another friendly nod."
How to Skoal with Style and Grace