Well, as a cat who does this myself I feel I am very qualified to tell you what to do. The reason us cats like to do this (in my case I find repeatedly shoving a wet nose into my person's cheek particularly effective) is due to the fact that you humans are not allowed to ignore us when we want attention - a simple rule but one you lot seem to find difficult to grasp. If I want attention - be it a cuddle, a stroke, food, a drink ,or to play, my human has to obey - it's the law. The fact that it may be 3am and I've been demanding this every half an hour is irrelevant - you must obey! My advise to you is to do exactly what your cat is asking and pay attention to him. You'll be sorry if you don't. Welcome to the wonderful world of cat slavery! Have a nice day. Sam the Man. Miaow.