Step 1: Hold baby as if you're going to burp him, above sling.

Step 2: Lower him a bit while your other hand pull outer material open and up covering his back.

Step 3: While supporting baby in place, switch hands so now the hand that pulled the material up is now supporting baby's bottom inside sling and other hand is holding outer material high poised to support baby's head.

Step 4: Slowly shift him in a breastfeeding position by letting his head fall into the sling by leaning forward. 

Step 5: His body should end up facing you, like he's wrapped around you. 

TIP: If your baby is on the bigger or longer side, let his legs dangle by holding inner edge (where the pads are) below his bottom rather than legs inside sling, before going through the steps.