Although not a Manx Gaelic scholar the phrase I always say when crossing the "Fairy Bridge" at Ballalonney is "Moghrey Mie Mooinjey Veggey" - "Good Morning Little People", or "Oie Vie" - "Good afternoon/ evening" little people.

The first is spoken as something like "Morrah My Munjah Vay-gah" and the second as "Ee Vy".

To another query - Yes, Manx is a form of Gaelic.