It is used to control one's mood or expression. Pressing a certain button will make one laugh, another will make one sad, and so on.
|Make That Girl Laugh!||Doraemon||To force Nobita to make some expressions.|
|Make That Girl Laugh!||Nobita||To stop Sensei discussing with Tamako Nobi about Nobita's performance in school.|
|Make That Girl Laugh!||Nobita||To make Musuko laugh.|
|Make That Girl Laugh!||Nobita||To force Gian to make some expressions.|
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