Drop me a line and say hello, won’t you?
What is the meaning of the last part - won't you?
- Is this a way to say "do it!" the way a parent would tell their children?
- Or is it just another way to say please" without any second thoughts?
- Or something else?
EDIT to add some context: I found this expression on Brian Gordon's contact page. He is the author of Fowl Language, a comics book/strip which deals with the wonderful experiences of parenting the hard way. This is why I somehow expect the meaning to be the first one in my list, along the lines of the world of the duck parents of his books.