Apple iPhone iOS 8.1 - Manual (Page 169)

Appendix B International Keyboards 169
Type Japanese kana. Use the Kana keypad to select syllables. For more syllable options, drag the
list to the left or tap the arrow key.
Type Japanese romaji. Use the Romaji keyboard to type syllables. Alternative choices appear
along the top of the keyboard; tap one to type it. For more syllable options, tap the arrow key
and select another syllable or word from the window.
Type facemarks or emoticons. key. Or you can:
Use the Japanese Romaji keyboard (QWERTY-Japanese layout): Tap , then tap the key.
Tap , then
tap the key.