I'd be careful with recommending animations. Getting animations right is extremely difficult. And it's dangerous: if you get an animation just slightly wrong, t

I'd be careful with recommending animations. Getting animations right is extremely difficult. And it's dangerous: if you get an animation just slightly wrong, the experience will be worse than a sudden change. Our brains are pretty good at coping with sudden changes. What's more important than animating changes, is to make sure the user expects the change. For example, if extra form fields appear after the user clicks a button labelled 'show advanced settings', nobody will be surprised. However, if form fields appear and disappear automatically as you are typing, you'll startle the user wheter you use animation or not. My recommendation would be: keep UI as static as possible, make changes predictable. If you really want to use animations, put a lot of effort into testing them to make sure they are beneficial. Hastily added animations can do a lot of harm.