Open the doors and there's all the people. Surrey/Kent but with grandparents from all over the place.
Also One potato, two potatoes, three potatoes, four...always degenerated into small child getting quicker and quicker to put a fist on top or the giggles from This Little Piggy Went to Market.
Expanding into songs as well, obviously Incy Wincy Spider, Walkies Round the Garden, Horsie, Horsie, Don't You Stop and There Were Ten in the Bed, albeit without the strange addition of remembering to tie a knot in your pyjamas because single beds are only made for 1, 2, 3, 4...
And B-I-N-G-O, One Man Went to Mow, Whose Are Those Pigs (DP's moorland primary had to teach them to not sing 'Oooos be thum pigs?'), etc.
Could do a great rendition of There Was an Old Woman Who Swallowed a Fly and a terribly theatrical recitation of The Owl and the Pussycat, too. Wasn't too shabby at doing Fox Went Out One Chilly Night either.
I was most confused when taking the eldest to various groups to find them doing something about winding up bobbins as though everybody knew it. Or encouraging them when rowing their boats to scream at a crocodile and a cautionary tale about monkeys jumping on a bed.