If you're using bones, you'll have no problem learning morphs, it's really quite simple (ish!) - All you need do is find a site which will show you the position of the mouth for the sounds of the letters of the words you're speaking, if that makes sense! - google images for 'mouth shapes' - there's a simple one up there. I believe the correct term to describe this is 'phonetics' - but don't quote me on that!
Then all you need do, is click on the 'M' symbol in the bottom right of Modeler, then from the drop down menu to the right, choose 'new' and name the new morph as one of those phonetics, for example 'Morph_ah'.
Now simpley modify the geometry of the mouth to match the shape for the sound you want to make. - continue to do this for all the sounds or phonetics, then save and send to layout.
once in layout go to the object properties for the model, and under the deform tab, choose 'morph mixer' from the displacement drop down menu. Double click it to display all the morphs associated with your model, you can now move the timeline and the sliders in the morph mixer over time and animate your mouth speaking!!
Job done - bit of a rough and ready description, but hope it helps
