Refer to him as 'Legoland.'
Ask him if he uses lego pieces as currency.
Ask him if he believes in 'Legoism'.
Confuse him with the Netherlands.
Refer to him as a 'slob'.
Describe him as being 'unhygienic'.
Accuse him of being racist.
Call him 'arrogant'.
Tell him that he lacks self control.
Criticize him for being too outspoken.
Refuse to have any conversation with him.
Tell him that he's too boring.
Ask him why he is always hiccuping.
Tell him that his language sounds silly.
Claim that Swedish sounds better than Danish.
Prohibit him from drinking beer or any other alcohol.
Refer to him as an 'alcoholic'.
Claim that his beer tastes like mouthwash.
Deprive him of his famous Danish bacon.
Steal his bicycle.
Strut around reciting lines from Hamlet in a melodramatic manner.
Ask him if he personally knew Hamlet.
Ask if he would like to relive his Viking days.
Force him to watch 'Thor' with you.
Force him to watch Disney's 'The Little Mermaid' with you.
Criticize any of Han Christian Andersen's works.
Ask why movies from his place are always so dark and grim.
Play Aqua songs full blast when around him.
Even better, sing 'Barbie Girl' as badly as you can.
Ask him if he secretly has the hots for Sweden.
Point out that Sweden has won Eurovision more times than him.
Recite the rules of the Law of Jante to him in your most condescending voice.
Remind him how small his land would be without Greenland.
Ask if he misses having Norway under his control.
Claim that Sweden is cooler than him.
Claim that Swedish food is tastier than Danish.
Tell him that he doesn't deserve to be so happy.
Every time he praises his own looks, beg to differ.
Suggest that he might not be the 'oldest brother' of the Nordics.
Claim that the other Nordics find him annoying.