What do the various thought bubbles over the fish store customers heads mean? Other than the obvious ones like house=home, cup=coffee. Can they be used to help sell more fish?

Thanks!

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I just made this:

= Happy with purchase (I think)

= That's cheap?

You'll probably know the others with out me doing pics. Like the opposite of the green that's cheap? bubble is a red one will a sad face means they can't afford it. For all the fish ones, it usually means they're looking for that particular fish, but not allways.... The sea diver one, I don't know. Maybe it means you need more ornaments in your tanks? Most of the others don't mean much of importance.

Thanks for the help. Very Much appreciated.