Tummy-to-Tummy
This is a wonderful position for newborns and infants who haven't developed good head control! You can also use this position for toddlers, too!
 
To begin, raise you child high up on your shoulder - the shoulder opposite the rings.

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Lower your baby into the sling and position him/her so they are tummy-to-tummy with you - you can either let their legs go out the bottom of the sling and straddle your tummy or you can have them inside the sling, whichever is more comfortable for you and your baby.

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Once they are in the sling continue to support their weight as you bring the top of the fabric to their neck or up over their head and pull on the left edge of the tail so they are snug against you. If you have an older infant or toddler you can bring the fabric below their armpits so they don't have their arms restricted in the sling.
 
If your baby has their legs through the bottom of the sling bring the fabric to where their knees bend and tug on the right edge of the tail. Remember to have their bottoms a little lower than their knees.
 
If your baby has their legs inside the sling then just tighten the bottom of the sling by tugging on the right edge of the tail.

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