It's called reactions and you can't command what people give you.
(However, you could try to influence it a little, maybe by providing good content.)
You also can't see who gives what reaction.
That's why we keep this feature as slim as possible. And to prevent abuse, negative reactions that decrease your status points are not possible. So nobody can downvote anyone. However, it's currently still possible to react on every post with a "sad smiley". And while that is peculiar, it's no reason for me to turn it off.
I would, however, limit the amount of reactions people can give each day if that feature was used for spamming continuously. And yeah, you can give a cry smiley on that one now