Task: Question Answering
Input (English): Context: So Nicole held a party to celebrate her birthday yesterday . It was really nice , though she got rather drunk rather quickly and was goofy and skipping around the house and tackling Kent . xD It was nice seeing Adrian and Tony again ( I had n't seen them since the cottage ) , and recalling the insanity of the cottage weekend ! Trevor and I walked home sometime after 1 am , and it was still warm and muggy and NICE . 
Question: Why did Nicole get so drunk that she was skipping around the house and tackling Kent ?
Output (English): As it was her birthday , she decided to let loose a little and drink to excess.