I do it right side up and just use the diffuser like a normal hairdryer, no touching the hair at all, no putting curls in the bowl (actually I have a sock diffuser these days) or scrunching them up towards my head, it just creates frizz.
I airdry for at least an hour then finish off with the diffuser (5-10 mins). Once my hair's completely dry I squeeze the crunch out while still pointing the diffuser at my head.
Hope that makes sense!
3b in South Australia.