Balloon icons

What do these icons mean?

I think it’s supposed to show what’s on a Zoi’s mind.
I really wish I could remove those with a menu option. I really do not care at all for them

Yes, but I can’t understand what each icon means. For example, what does this scooter mean?

I’m just guessing what they mean, like the gift bag with an arrow, meaning that they want to give a gift to the person they’re thinking of. With the scooter, I’d assume he wants to buy a scooter or ride his scooter if he has one. I’m not sure if the colour of the icon has any significance, although it doesn’t seem to indicate anger. I’ve had a lot of thumbs-down icons due to an unpleasant divorce.