You speak of Hallowe'en, but the traditions in Scotland were very different from England - I'm sure someone will correct me on this, cause it's a long time since I've lived north of the border.
As children, we would dress up, knock on the doors of folks we knew. If invited in we would have to tell them who we were dressed as, and do a party piece (a dance, poem or a song). Sometimes we would dook for apples, other times we'd come away with sweets of a few pennies. More recently we lived in Aberdeen where Hallowe'en had taken on the American Trick or treat.
Also in Scotland (and parts of England) Hogmanay is still celebrated.