These Kaomoji are dancing with their arms up while facing to the right. Dance steps have to take an emoji somewhere, so it may as well be to the right.

Dancing right
(/・・)ノ(ﾉ･ｪ･)ﾉ(ﾉ*ﾟｰﾟ)ﾉ
(ノ￣ー￣)ノ( ﾉ^ω^)ﾉﾟ(*ﾉ´□)ﾉ
(ﾉ･o･)ﾉ(ノ‥)ノ(ノ´＿ゝ｀）ノ
(ノ^_^)ノ(ノ^o^)ノ(ノ￣ω￣)ノ
(ノ°ο°)ノ(ﾉ≧∀≦)ﾉ(ﾉﾟ▽ﾟ)ﾉ
〈( ^.^)ノヾ(⌐■_■)ノ♪ヽ(⌐■_■)ノ♪♬
(｢･ω･)｢(┌ﾟдﾟ)┌♪(┌・。・)┌
(｢･ω･)｢ヾ( ͝° ͜ʖ͡°)ノ♪(ﾉ´∀｀)ﾉ
(ノ〝∩｡∩)ﾉ┛´Д｀┃┛))(ノ´m｀)ノ
(Г・ω・)г(´「^o^)「(ﾉﾟ⊿ﾟ)ﾉ

On the other hand, these Kaomoji are dancing with their arms up and towards the left. After stepping right it is only natural to step left!

Dancing Left
＼(ﾟｰﾟ＼)ヽ(･ω･ゞ)ヽ(^‥^=ゞ)
＼(^ω^＼)ヾ(-_- )ゞヽ(;^o^ヽ)
ヾ(´▽｀;)ゝヾ(^ ^ゞヾ(^^ゞ)
ヾ(ﾟ∀ﾟゞ)ヽ(ﾟｰﾟ*ヽ)ヘ(^_^ヘ)
ヘ(^o^ヘ)ヘ(￣ー￣ヘ)ヘ(￣ω￣ヘ)

ヽ(∩。∩゛ヽ)ゝ(▽｀*ゝ)ヾ(´▽｀*;)ゝ”
へ(ﾟ◇ﾟへ)♪L(´▽｀L )♪ヾ(￣ー￣ヾ)
ヘ(´m｀ヘ)ヘ(^0^)ヘ