The little yellow balls that drop off are the seeds. With palms, it's better to let them complete the flowering process, and wait for the old bloom to fall off on its own. Most palms are dioecious, and this Chamadorea elegans is no exception…that means it takes both a male and a female palm to produce fertile seeds. But these are sold in a broup of individual palms in the same container (usually) because this is a solitary palm, not a clumping palm, and most people want a more full container of palms in the house. So you get a mix of both sexes, and your seeds will be fertile.
The ones that fall into the container will easily and readily germinate by themselves and make new baby palms.
The ones that fall on the floor, you can just sweep up.
The reason it's better to let it complete the flowering process is because after the seeds drop and the infructescense dries up, it will fall off naturally and take the fronds below it with it. This is how the palm grows and makes a nice trunk. It will automatically shed both the old bloom, and the old fronds. It's called 'self cleaning'. If you interrupt the process, your palm has to be groomed by hand.
