Before you go completely bonkers from going about it in a way that drives you nuts, experiment with using additional layers for emotional tweaks, etc.

You don't have to delete a single frame from the base layer to add things like blinks, laughs, kisses, etc. The changes can be suttle, or extreme.

You can define the Frame Range that each layer affects and how it Blends into the base layer. You will want to use the Replace option for some things, and Add for others.

Layers can be flaky sometimes, so save often. Name them something you will actually remember.

One of the best aspects of using layers is that you can turn them off.

Which means if they are all turned off, your base layer has never been changed at all.

Very simple tutorial...

http://my.smithmicro.com/tutorials/2380.html

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