As young link, go in a crawl hole and come out. For about 1.5 seconds after coming out, you will be unable to use items. If you bring up a text box during this time (i.e, a sign, navi, talk to a person), items will be enabled. If you use deku nuts at this point, you will be able to move freely, however the camera will stay locked. If you have an ocarina and use it, it will put the camera back on you but if you press A at any time the game will lock up, unless you pause and unpause first.