Justin and Andrew and Hannah
Hannah was making the rounds, making sure everyone was having a good time, that they were enjoying the food and had enough to drink. She also went into the kitchen to see if Jasper needed any more help and he promptly shooed her out and told her he had it handled.
Ernie had found some of his mates from the Prophet and the Ministry, Megan was helping out tending bar and after she'd gotten a hug and visited with some others, she spotted Justin and Andrew walk in.
She snuck up behind Andrew and crouched down, pulling out her wand and made it snow a little more on the tree. "Nope, you'll only find that here sweetheart," she said before hugging the little boy and actually picking him up, winking at Justin.