1. Lay diaper out flat.	2. Fold in thirds.	3. Place liner on top of diaper.
4. Place diaper in open cover.	5. Slide cover and diaper under  your baby. Fold the diaper down in front* if it is too long.	6. Bring up the front of the cover and fasten.

*Some cover/diaper combinations work better with the diaper folded down in the back.

For a newborn, try folding the diaper in fourths along the short length.

Some diaper covers have a flap that is sewn on the top front (like the Bumkins above, there are others as well). Bumkins calls this a Leak Shield and recommends that you tuck your diaper into the pocket. I do not recommend that you do this. When a wet diaper comes in contact with the stitching where the velcro is sewn it will wick out onto the velcro. I think that it works better to keep the diaper out of the pocket and use the Leak Shield to keep the diaper off of the velcro stiching.