Puppies often do this kind of thig with food -- take out individual kibbles etc. -- just seems part of playinggames. Generally a lot of this goes away as they get older when actually eating becomes the priority! :lol:
One BIG word of warning though -- be very cautious about putting food on the floor or doing ANYTHING to indulge or fuss over the pup/dog once the food bowl goes down. First off if you board your dog, kennels/boarding homes are not going to indulge the dog by dumping food on the ground. Secondly, 95% of the time this behaviour has nothing at all to do with any real problem with eating from a bowl -- it is game playing to get attention from you and is part and parcel of problem eating, where a dog might start to refuse food, or wait til you offer new things, or change the food, or feed from a spoon, or from your hand... as long time members will recognise, all these things are probably the NUMBER ONE problem people find arises with their puppies and is one of the most frustrating and can become a very long term, major feeding issue.
In other words, do NOT indulge it. Put the food in the bowl, put the bowl on the ground, IGNORE the dog for the next 15 minutes; if any food remains uneaten lift the bowl without comment and put away -- no in-between treats -- til the next scheduled meal when you repeat the process.
I cannot tell you how many times people say "But my cavalier will only eat off a plate, not a bowl/only eats off the floor/ and only picks out this bit of the food, or refuses to eat, or will only eat Food X'. Then they are totally shocked when the dog goes to stay with someone else or is kennelled, eats from the bowl normally, and eats whatever is given to him or her! It is because the dog learns quickly that YOU will pay all sorts of extra attention if they try these techniques -- they have trained YOU to do what they want and this is only going to continue and possibly get a lot more frustrating -- very quickly it will no longer be cute or quirky but a headache. A fresh person and situation means they cannot do any of these things.
It is much better to not encourage potential eating problems and fussiness and just expect the dog to eat normally, eat the food you choose to offer, in a proper bowl. And the way to help avoid problems starting is to not watch and fuss over the dogs while eating, especially puppies -- yes they are cute and this can be a temptation, but a puppy learns immediately that the more it fusses and does odd things, the more you will pay attention to it constantly during a meal. Just put the food down and ignore the dog.