Here is one training tip I was given to train myself to SPDs. I think it should work with Look, Eggbeaters or whatever.

- Reduce tension to minimum.

- Get on your bike near a fence, post or similar structure you can lean onto.

- Backpedal and try to unclip with the left, then the right foot (you still have the post to lean onto, so there is no rush to immediately unclip.

- When it becomes natural, go ride.