Bestow and cheating into play

[Phoenix Ignition]

This is probably going to be covered in the set FAQs but if a card with Bestow gets cheated into play (Show and Tell or Enduring Ideal or something), can it enchant a creature or do you not get a choice (automatically a creature)?

[Malchar]

Bestow {cost} (If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attached to a creature.

Cards with bestow aren't auras unless you cast it for its bestow cost. They are just normal enchantment creatures, so they can't be attached to anything.