Have you ever been attacked by a 5 month old? I promise, it's one of the most amusing kind of attacks imaginable.
Set the stage by allowing the baby to stand in your lap. He will then proceed to grab two fist fulls of hair, one on each side of your head. Next, he'll lean over and start sucking on the closest part of your face. He doesn't discriminate as to which part is best. Cheeks, chin and nose are all the same to him. Once you have pried him off your face and the hair out of his hands (no easy feat, I can tell you!), go find a towel and wipe off the oodles of slobber. I never knew my little boy could be so strong and determined!
By the way, no, he wasn't hungry. He was tired. After drying off, it took about two rocks in the rocking chair and he was out!