Walking while talking is a rather bizarre glitch that seems to occur when interacting with an actor while the camera is not tracking Link as it normally would.
Exit a crawlspace, quickly roll to read a sign or open a door.
For this method, you must die while out of bounds with a fairy to revive you in your inventory. This will delay the start of the fairy revival cutscene until you return in-bounds. Once back in-bounds, interact with something to pull up a dialog menu and break free by tossing a deku nut.