Hi! You know how he highlights some words in deep blue? Well, by using the words FUN, FURNITURE, and then the colour of the barrel or furniture you want to get, he will give you the option to purchase a barrel with your festive points.
Here's an example of the dialog you need to use:
22:17 Xaver: Hail, visitor! Welcome to the Orcsober festivities! Bring your friends, grab a beer, have fun and enjoy the scenery!
22:17 Ryocrits [435]: fun
22:17 Xaver: I sell lots and offer worms for our fishing contest. I also garnish gingerbread hearts in case you have one. And I trade traditional furniture, treats or a specialty for festive points (FP).
22:17 Ryocrits [435]: furniture
22:17 Xaver: For a humble offer of festive points I will hand over a selection of traditional furniture. Please note, that these items will be put into your store inbox! Which colour do you prefer: red, green or blue?
22:17 Ryocrits [435]: red
22:17 Xaver: And which furniture? A chair (1500 FP), table (2500 FP), rack (1800 FP), candelabra (2000 FP) or wall hangings (1200 FP)? ...
22:17 Xaver: In addition to this I also offer a decorative barrel. It is not coloured but a real bargain for 1300 festive points!
22:17 Ryocrits [435]: barrel
So, the words are: HI-FUN-FURNITURE- RED/BLUE/GREEN (depending of the colour of the barrel you want)- YES.
Hope this helps!