Unfolding and reading letter, then crumpling paper into a ball and burning it in the fire.
Blowing a whistle many times, weakly
Paper wrapped around box with some rustling, adhesive tape and scissors used
Cardboard packet containing blister pack of pills opened, pill taken from blister pack.
Knuckles rapping on glass window
Tearing paper roughly and sloppily
Slide whistle up and down - wolf whistle
Descending slide whistle, long and smooth