In the lead-up to Christmas, alcohol sales double as the country indulges in an orgy of parties, boozing and eating. The person whose birthday this is nominally supposed to be celebrating would not be impressed.
So what is the Christmas spirit? It can be summed up as concern for others, selflessness, and doing the right thing by others. Remember that there are people (and animals) out there who are less well off than you and could use your help.