All those answers are very good, but I have had people asking me how to spot someone doing Tai Chi. When you see a sim switch into their workout clothes in the Far East, that is when they are going to do Tai Chi. Just joining in the exercise isn't enough though, you need to do it for a little while, and then finally you will get the memento.
the ancient exercise in the mementos would be tai chi. Its very easy. Anywhere in takemizu village really you can find some sims by a stereo who are already doing it. Or when you visit the wise old man and have him tell you the dragon legend (another memento to fulfill) sometimes while you allow your relationship with him to build (enough for him to tell you the legend) he can randomly do tai chi. Just click on him and join.
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All those answers are very good, but I have had people asking me how to spot someone doing Tai Chi. When you see a sim switch into their workout clothes in the Far East, that is when they are going to do Tai Chi. Just joining in the exercise isn't enough though, you need to do it for a little while, and then finally you will get the memento.
the ancient exercise in the mementos would be tai chi. Its very easy. Anywhere in takemizu village really you can find some sims by a stereo who are already doing it. Or when you visit the wise old man and have him tell you the dragon legend (another memento to fulfill) sometimes while you allow your relationship with him to build (enough for him to tell you the legend) he can randomly do tai chi. Just click on him and join.
tai-chi? if your sims see other sims doing tai chi, you ckick on one of the sims doing tai chi and somewhere it'll say, join tai chi (or something)
if you have already learned it, you can click on a place on the ground, and tell then to do tai chi.
When you see some other sim do it, you click on them and click Join. Then after a little bit, they learn.