Do you dress differently from other days? Do you actively plan to wear loose clothes to fit the dinner in?!
I'm packing my suitcases to go home for Christmas as were spending it with DHS family. My family always dress up but DHS don't, so I'm going to wear
Grey skinny jeggings
Sequinned jumper from Zara
Spangly statement necklace
Comedy Christmas earrings 
Sheepskin slippers