Answer:
you can cheer another sim by playing chess with them or giving them an instrument,,, or maybe perhaps you could cook for them with this ingredients: 1.) red snapper, 2.) chicken, 3.) eggs,, or,,, red snapper, chicken, eggs, and a honeycomb,, it should satisfy them good enough for a period of time,,......
you could eat it too,, it will add you +3 on all of your skills,, but it only works for a moment,, so you should do everything while it last,,,