'appen I'll sit here all night

SAMUEL SMITH'S NUT BROWN ALE is brewed in YORKSHIRE, where some of the locals use the word "happen" in place of "maybe."
"Happen I'll sit here all night" would mean: "Maybe I'll sit here all night."
I am sipping on some Nut Brown Ale right now, listening to some NICK DRAKE and unwinding.
I want to watch some Olympics on television, but the allure of just sitting here, sipping here and listening to "At the Chime of a City Clock" is just too great.
Actually, Yorkshire people sometimes fail to pronounce the "H" at the beginning of words, so what I really mean to say is:
"'appen I'll sit here all night."
And I just might.