Fruit always equals mess with my two, they get so excited that they eat in my lap (so as to be as close as possible for the next piece) and I end up with juice all over me.
They also get it all over their little furry faces which then snuffle all over me looking for more fruit.
My cockatiel is also a messy eater, he gets food all around his beak and then gives his head a shake so the food goes flying in all directions.