Four:
At the beginning of the verse it looks like maybe one of the musicians takes his R shoe off...

...Right shoe (foot?) off and left foot to the knee? (He does this)
The Haggis was invented right for all the world to see
Your sister and your mammy, they're ......... too
They'll raise their arms and pump their legs
And shout "Och aye (to you?)"

And then the pipers come out on the fifth verse and it sounds like the
first couple lines are lists of things "..... and ..... and ......,too"
Something something something something something "for me and you"
something something something something "ever need a friend"

Blessings,
Barbara