"For tricks to be an available action, your mood must be 25 or higher (two green bars) and the short term relationship with the pet must be at 35 or higher.  The reaction is random, but more obedient pets are more likely to perform tricks." - TEM

"You can use the Sit and Stay interaction to increase your pet's obedience skill." - TEM

"Don't leave your hungry cat alone with a bird or fish!!! If you are sick of your kids, make them stay home from school and don't feed them, make them do all of the work, until they die! Then turn on a cheat by pressing Ctrl, shift c, and type in move_objects on. Then sell the tombstone and get money back! Also use this cheat and delete one of your family members, then click on them at the task bar at the bottom of the screen, and they will appear and be full in bathroom, hunger, hygiene and everything else!" - sims_freak_242

"I think that it is good for sim-kids as for sim -adults. to have pets cause the sim -kids can play with them. when they out of school with their friends." - susanne

"Want fast relations, easy take your pet to the cafe and meet new people, if you have hot date, use the downtown and bang." - Luc