"Alright, we're going to have a chance to test out those memories in a fun and safe way." She summoned some boxes which came whizzing into the room to settle at her feet and Althea smiled to herself.

The first box she opened contained some party decorations, like streamers and balloons and silly hats, as well as a lovely old gramophone and an assortment of records, particularly those of the most popular current Wizarding Rock groups.

The second box contained some trestle tables, which she enlarged and placed against the wall ready to be set up, but within the box itself there was also some tablecloths and paper party plates, paper cups, and plastic utensils.

The third box contained small bottles, each filled with a clear pale blue liquid, enough so that everyone could take one each. She opened it and left it at her feet as she spoke.

"We're going to have a bit of a party, and you guys are going to set it all up to make a happy environment for the rest of the lesson. The first thing I want you to do is take some party decorations from the first box and set them up. If you need to use some spells you can, levitating, sticking charms, if you know them and they are appropriate to use, go right ahead.

The second thing I'd like for you to do is work together to set up everything we need for party food, get those trestle tables set up, and ready to go.

After we have the room party-ready, comes part three! See these little bottles at my feet? We're going to test out our happy memories, see how strong they are. The bottles contain a levitation potion, activated by happy thoughts. If you take a little sip and think hard about your chosen happy memory, and its strong enough, you'll float up into the air. The strongest memories will allow you to float up to the ceiling." And she was sure those of them who were potions savvy would realise that one of the ingredients was Billywig stings, as well as the use of a cheering charm in its brewing. Giddiness and happiness would be a bit of a lingering after effect.

"To get down to the floor again, you just burp. I'll mind your manners just this once!"

And of course one other thing.

"An elf will be along shortly with party food. Plenty of chocolate and plenty of soft drink for those of you that need happy fuel and burping fuel." She smiled around at the students. "And if you're floating around enough, you might just work up a hunger anyway, do feel free to help yourselves when the food arrives." Especially because Professor Schirmer wasn't usually one to allow food in her classes.

"If you don't levitate at all, try a different memory, or focusing harder. This is your chance to experiment and see what works for you." Althea advised. "Alright, lets get everything set up, shall we?"