Eating Slowly

Yesterday I gave both Manzi and Maui a whole almond (courtesy of Maui's previous owner). Manzi can finish an almond in about a minute. Maui on the other hand is very slow. She takes close to 10 minutes. She chews on each piece of shell she breaks off and then finally gets to the center.
So, they were both on their cage eating and by the time Manzi had finished his almond, Maui hadn't even gotten to the seed part. She was still busy chewing away on the shell. I was looking closely and it appears that she might even be consuming bits of the shell. Usually when Manzi is finished he tosses the almond aside, but he was watching Maui closely. He didn't want to be finished while she still had something to eat. So, he began chewing up the shell too, copying her. Next thing I know, they were both chewing the shells into little tiny bits. It still took Manzi only half the time it took Maui. Eventually he didn't have anything else to chew so he flew back to me, but not after first staring hopefully/jealously at Maui. Maui fluffed up at him as if to tell him, "Don't you dare!"
It reminded me of how some kids eat something really fast and then stare at those who still have their dessert in front of them slowly savoring every bite.

Both birds are back to eating together on the floor again. It has been going well. Every time Manzi looks up at Maui, she puffs up at him while backing away. Manzi then resumes eating after which Maui does the same. The bowls are 12" apart.