I am about to cover this, In my version to keep it close to my own locale here in Sussex.

I have been playing it like this.

(Am) As I went ( G) a-Walking (C) to Horsham Fayre (G)
(Am) I saw (G) Pretty Nancy (C) a-Curling her hair (G)
(Am) I tipped her a (C ) wink and she (G) rolled her dark eye (E)
(Am) I think to myself , I'll Be there (G) by and by (Am)