Infatuation/In Love
For Japanese emoticons that express infatuation or love you pretty much just need to add hearts to happy looking emoticons. You can also add rosey cheeks or even the Chinese character for love, 爱.
(´∀‘)♡
(‘∀’●)♡
（*´▽‘*）
(*°∀°)=3
（´ω‘♡%）
ヽ(爱´∀‘爱)ノ
♡o｡.(✿ฺ｡ ✿ฺ)
(｡･ω･｡)ﾉ♡
（●´∀‘）ノ♡
♡＾▽＾♡
(｡-_-｡ )人( ｡-_-｡)
(●♡∀♡)
（＿´ω‘）
(´ ▽‘).。ｏ♡

(o⌒．⌒o)
（人´∀`*）
（〃・・〃）
♥（ﾉ´∀`）
(ღ˘⌣˘ღ)
(｡’▽’｡)♡
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Kissing
For kissing emoticons you usually want to use something like ￣ or – for closed eyes. For a mouth use either ε or з. You can even add a "chuu" which is the Japanese sound for a kiss or you can write it in Katakana by using チュー.
(´ε‘ )♡
～(^з^)-☆
|°з°|
（＿ε＿）
(‘ε’)
|(￣3￣)|
（￣ε￣＠）
（*＾3＾）
(´ε‘*)
(○´3‘)ﾉ
(☆´3‘)
(*￣з￣)
(づ￣ ³￣)づ
（○゜ε＾○）
(TεT)
(-ε- )
（＠ーεー＠）
（*＾3＾）/～☆
ლ(|||⌒εー|||)ლ
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Laughing
These are essentially happy looking emoticons with an open mouth.
（・∀・）
（ ´∀‘）
（⌒▽⌒）
（＾ｖ＾）
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Mellow/Whatever
The key to mellow looking Japanese emoticons is pretty much just having arms pointing upwards with \, /, ┗, ┛ or ノ.
ヽ（´ー‘）┌
┗┐ヽ(′Д、`*)ﾉ┌┛
ヽ( ´¬`)ノ
┗┃・ ■ ・┃┛
ヾ(´A‘)ノﾟ
ヽ（・＿・；)ノ
ヽ( ￣д￣;)ノ
＼（〇_ｏ）／
ヽ(。_°)ノ
＼(;´□‘)/
ヾ(*´ー`)ノ
ヽ(‘ー`)ノ
ヽ(ー_ー )ノ
ヽ(´～‘；）
┐(‘～`；)┌
ヽ（*ω。）ノ
(;´・`)>
（＾～＾）
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Monkeys
You can easily make Japanese monkey emoticons by using @ symbols for ears. You can use pretty much any face and just add @ signs to make it into a monkey.
@(o･ｪ･)@
└@(･ｪ･)@┐
@(｡･o･)@
@(o･ｪ･o)@
@(/o･ｪ･o)@/
@(*^ｪ^)@
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Moustache
You can basically take any of these emoticons and add a ┏ and a ┓ around the mouth to give it a somewhat Chinese looking moustache.
(´┏o┓‘)
ﾐ(´┏ω┓‘)/
(´┏･┓‘)
(￣┏Д┓￣°*)
(￣┏Д┓￣ )
( ￣┏＿┓￣)
(ノ≥┏Д┓≤)ノ
(￣┏∞┓￣)
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Painful
In addition to this one painful looking Japanese emoticon you could probably add stars to angry looking emotions.
☆⌒(＞。≪)
☆￣(＞。☆
~(>_<。)＼
ヘ(><#)ノ
(。_＋)＼
(xLx)ヾ
/(*ι*)ヾ
(ノ><)ノ
／(x~x)＼
◎☆（♯××）┘
ヘ（。□°）ヘ
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Pigs
The main thing for Japanese pig emoticons is the snout which you can make with two 0s, Os, os or a ∞. You can do pretty much anything else you want for the rest of the face.
( ´(00)`)
ヾ(；ﾟ(OO)ﾟ)ﾉ
ヽ(*’(OO)’)ﾉ
(￣(oo)￣)ﾉ
(○‘（●●）´○)ﾉ
(*’(OO)’*)
( ´(00)`)
(；ﾟ(OO)ﾟ)
(*´(00)`)’
ヽ(*’(OO)’)ﾉﾟ
q(￣(oo)￣)p
｡ﾟ(ﾟ´(00)`ﾟ)ﾟ｡
(￣（∞）￣)
(￣(▽▽)￣)
(=‘(∞)´=)
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Sad/Crying
The main part of sad Japanese emoticons is the tears. These are usually shown with a T or sometimes a ;. You can also throw other small circles around the outside of the face to show tears flying as well. You can also use characters like / and ＼ to cover up their eyes to make it look like the emoticon is sobbing. You can pretty much use whatever you want for a mouth.
（ ; ; ）
(T＿T)
（ ＴДＴ）
(ToT)
(Ｔ▽Ｔ)
(‘A`)
（；_・）
(T_T)
((T.T； )
(； T.T))
（；へ：）
(ノД`)・゜・。
・(/Д`)・
(´＿‘。)
(´Д‘。)
(´Ａ‘。)
(´∩‘。)
｡：ﾟ(｡ﾉω＼｡)ﾟ･｡
(┳Д┳)
(´；д；`)
｡･ﾟﾟ･(>д<;)･ﾟﾟ･｡
(。┰ω┰。)
(*´；ェ；`*)
(゜´Д‘゜)
（ｉДｉ）
(´；ω；`)
。ﾟ(ﾟﾉД‘ﾟ)ﾟ｡
ヽ(´□‘。)ﾉ
(ﾟ´Д‘ﾟ)ﾟ
{{p´Д‘q}}
ヽ(●ﾟ´Д‘ﾟ●)ﾉﾟ
( p_q)
.・゜゜・（／。＼）・゜゜・．
(个_个)

((´д‘))
( ≥Д≤)
｡゜(‘Д´)゜｡
(。┰ω┰。)
p(´⌒‘｡q)
(/□＼*)・゜
((o(;△;)o))
（；￣д￣）
(ㄒoㄒ)
⊙＾⊙
o(╥﹏╥)o
o(；△；)o
(;*△*;)
（´＿‘）
╥﹏╥
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Scared
For scared japanese emoticons you pretty much just want to use / or \ to cover the emoticon’s eyes. You can also make pretty much anything with an open mouth such as Д and raised arms.
(ノдヽ)
ヽ(ﾟДﾟ)ﾉ
(／。＼)
（／_＼）
（／．＼）
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Shocked/Surprised
For shocked or surprised Japanese emoticons you mainly want to use an open mouth such as a □ or Д. You can also use characters to show raised arms.
( ꒪Д꒪)ノ
(((( ;°Д°))))
((((；゜Д゜)))
（゜◇゜）
（￣□￣；）
∑(O_O；)
＼(>o<)／
━∑(ﾟДﾟ|||)━
∑(゜ロ゜;)
∑(゜゜)
(*ﾟﾛﾟ)
(」゜ロ゜)」
щ(゜ロ゜щ)
(ﾉﾟ0ﾟ)ﾉ~
⊙▂⊙
⊙０⊙
w(°ｏ°)w
L(・o・)」
(○o○)
（・□・；）
((((；゜Д゜)))
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Singing
For singing Japanese emoticons you can basically take any dancing Japanese emoticon, give it an open mouth with something like a Ｏ, △ or □ and adding a musical note like ♪ before or after the face always helps too.
ヾ(´□‘* )ノ
（＾Ｏ＾☆♪
＼(^o^)／
(´▽‘)ノ♪
"ヽ(´▽‘)ノ"
ヽ(´▽‘；)/♪
ヽ(´・‘)ﾉ
ヽ(○´∀`)ﾉ♪
ヾ(´ρ‘)〃
ヾ(´〇‘)ﾉ
(´△‘)♪
(ﾉ´▽‘)ﾉ♪
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