Why is my cat pawing at my lips?

I adopted my cat when she was around a year old, and have had her for at least 4 or 5 months now, and she has quite a few other quirky habits, but the past 2 weeks, every morning exactly 10 minutes before my alarm goes off, she has started waking me up by pawing at my lips repeatedly. She doesn't meow, but just keep poking at me, even if i turn over she'll just follow unless i put my head under the covers. After getting up I check to see if she was in need of food or water or anything but it wasn't the case. Does this behavior mean anything in particular or is this just another one of her quirks?