Hug him. Say you were on strict instructions from Dumbledore to do it.

Shout da da da dum whenever he passes by or enters a room.

Look terrified and leave the hall ANYTIME he picks up his spoon at mealtimes.

Dress like him and dye your hair black. Refer to yourself as 'mini-snape'.

When he leans down to inspect your work - Grab your wand, place the tip of it directly between his eyes and shout 'Lumos!'

Ask him why he saved Harry Potter. Ask him every day.

Clap noisily when he finishes telling someone off.

Hide in his chambers at night. Wake him up by jumping up and down on his bed shouting 'Rise and Shine Professor!'

When he leans towards you in class, looming over you and generally looking menacing - reach up, tweak his nose, then twiddle your thumb between your index and forefinger and say 'Got your nose!' triumphantly.

Ask him if he knows who Alan Rickman is.

Make a habit out of grabbing Harry Potter and dragging him into Snape's office by his ears, crying 'Here he is Sir! I've got him!'

Fall completely, head-over-heels in love with him. Let everybody know about it.

Whenever he begins to give out a detention in class, jump up and down (waving your arms wildly) while yelling “ICK ME! PICK ME!”

When Snape starts speaking to the class, start yelling "NO! NO! It's those voices again!"

The minute Snape walks into class, yell out "BLOODY HELL, IT'S THE APOCALYPSE!" (Extra kul med tanke på att Alan Rickman spelat både Snape och Metatron. XD)

Constantly grin like an idiot.

The next time he acts pissy, stand really close to him and shout "Professor Snape, STOP TOUCHING ME THERE!"

Proceed to cry.

Pass a note to Harry and/or Ron right when Snape walks by, and wait for his face to turn beet red when he starts to read it aloud.

Make sure the note is (cough, cough, ahem) inappropriate, so Snape's face turns really red.

Make it blatantly obvious that the note is about you and Snape.

On the off chance that you actually see Snape in a crowded hallway, go up to him and stand in his way until he storms off.

When he storms off, cry and yell "Why are you doing this, Severus? YOU KNOW THIS IS YOUR BABY!"

Run and hide before he gets a chance to kill you.

Tell him you want to have his children.

Tell him Harry and Ron want to have his children.

Hand him a list of baby names.

Tell him you're his long lost daughter.

Crawl into bed with him and ask him to sing you a lullaby.

Cry when he says no.

Do not do ANYTHING without his expressed, written permission.

Throw a Mad-Eye Moody at him at random quiet moments. 'CONSTANT VIGILANCE!'

In fact, just throw Mad-Eye Moody at him.

End each class with a wink and a 'See you tonight, Professor' Put sarcastic emphasis on the word 'rofessor'.

In the middle of the night, sneak into his quarters, shake him awake and shine a torch in his face shouting 'ineapple! Have you got any pineapple?'

Introduce him to the concept of 'fanfiction'.

Fall asleep in Potions.

If somebody wakes you, mutter as if coming out of a dream "Severus, dear, come back to bed."

Hide in his office and giggle until he finds you.

'Sir, I don’t believe in magic!'

Offer to assist him with his love-life.

Gaze adoringly at him.

Enjoy his classes a little *too* much.