Adding a gesture to a pose??

Please excuse my ignorance with this stuff, but I have a chair that I bought that was copy/mod, and I added a script that pulls up a menu when you click the chair, so you can choose different types of poses. To add the poses, all I did was drag the individual poses into content folder, and add the pose name to a menu notecard also in the content folder of the chair.
My question is, I had this really cute sitting pose that had a smiling gesture that apparently was different from the pose. So when I select that pose, I sit that way, but I dont smile. So my question is, how can I add the gesture so it works with only that specific pose?

Allysa
=^.^=

Which script did you add to it? The MLP stuff?

I'm not in-world right now, but I think thats it It was a free script

MLP is scripted to play facial animations over top of normal animations, depending on how you set it up. If you want the same effect in this chair, you'll have to add a facial animation playing over top of that sit. And that likely means scripting in that ability. I'm guessing your chair's script is probably no mod, so unless you're prepared to re-script the chair yourself, or if maybe the chair's creator would be nice enough to add that ability (not likely), you are out of luck.