How To Annoy Ciel Phantomhive- 

5. Tell him he looks like Grumpy Cat when he's angry

This will be especially funny because you saying this when he is already angry will make him even angrier. Then say he looks even more like Grumpy Cat now. Continue saying this as he gets gradually angrier, until he screams from frustration and calls Sebastian. When he arrives say you were simply saying Ciel looked like an internet cat, which will make it A-Okay with Sebastian.

4. Paint the entire mansion pink (again -__-)

This, judging by what happened last time, will cause Ciel to not only be angry that it happened again, but EXTREMELY annoyed at Elizabeth, even though she didn't do anything. This will hopefully destroy all chances of Ciel and Elizabeth getting married. Plus, it will take forever to clean up, even with Sebastian. So to make it even longer, make sure to do it right before Ciel gives him an order outside of the mansion.  Record Ciel's reaction because the faces he makes are hilarious.

3. Put a litter of kittens in Sebastian's room

This will make Sebastian slow, if not unavailable, for at least 4 hours. That will be a prime time to make Ciel the most irritated person on the Planet. 

2. Constantly invite Alois over to the mansion

This will not only annoy Ciel, but also Sebastian, Meyrin, Finny, Baldroy, Alois and Claude (I hope he's annoyed) since he's the one taking Alois there. Alois will prevent Ciel from actually getting his work done due to him being his annoyingly fabulous self. This will probably cause Ciel to snap and throw Alois and Claude out of the mansion. Only for them to rock up again the next day.

1. Always make bad puns

Stuff like "Whew, can we open a window in here? I'm burning more than Ciel's parents here!" and "Damn, how expensive was that? You must've given your right eye for that. Oh wait..." and use the phrase "One hell of a..." way too much. It's already said often enough when Sebastian says it, but when you do it, it'll be way too much. It will drive both of them crazy.

Hint+Extra Laughs

Record all this and make it into a movie and show it at Christmas or Ciel's birthday. Some time when everyone is together. You will probably be obliterated by a demon butler, but it will all be worth it. Am I right?! No...? Alright then. I'll leave...