i cant just get it
 

hell im new and still learning maya ,ive got a problem with animatating substances to move
and the other problem is to use a face modeller whereby i can import a picture and modell that certain picture

I'm not sure what you're asking, but if you want to import an image to model from, there are a couple of ways. I will give you the simplest way. You can do it by going to your work window and doing as follows:

Go to "View > Image Plane > Import Image". You can then import any image you like. Of course, you'll want to import a front view picture to your "Front View" work window, a side view to the side window, &c.

That's really all there is to it!