Knock knock. Who's there? Marmalade.

Marmalade who? Ma'am, I'd like to spread some cheer with a joke that's jam-packed with puns!

Knock knock. Who's there? Mango.

Mango who? Mango-nificent to meet you!

Knock knock. Who's there? Silence.

Knock knock. Who's there? Sue

Sue who? Sue-per excited to meet you, it's a shoe-in for a new friend!