YAY she is very pleased to see Loki there, it will be obvious she's happy about it. She'll probably challenge him to knife and axe throwing at some point!
I think Tina and Kate would probably say hi to Hana or randomly strike up a conversation? I think Tina would like her, and Kate also puts a lot of food away so they could meet at the food table.
Tor says thanks for the compliments! And will explain the birthday song later if she notices the confusion.