Caption: Head scratching
explanation: These kaomojis are scratching their head in confusion, which is a pretty classic gesture. They are trying to figure something out. There are a lot of great characters perfect for scratching arms, including ヾ, ゞ, ﾌ , ଽ , and〈. These kaomojis usually have petty neutral expressions to get across their confusions, but you can also make them look happily confused or maybe a tad bit frustrated!
(・_・ヾ
｢(ﾟﾍﾟ)
(・・。)ゞ
(｀_´)ゞ
(´−｀) ﾝｰ
｡(*^▽^*)ゞ
(^^ゞ
(^～^;)ゞ
(￣(エ)￣)ゞ
(-_-)ゞ゛
(＃⌒∇⌒＃)ゞ
(⌒▽⌒)ゞ
(●´ω｀●)ゞ
〈(゜。゜)
「(°ヘ°)
く（＾_・）ゝ
σ(´し_｀〃)ゞ
δ(´д｀; )
↷( ó╻ò)
(≖ლ≖๑ )ﾌ
(;＾◇＾;)ゝ
(・∧‐)ゞ
ଽ (৺ੋ ௦ ৺ੋ )৴
( ;-(ｴ)-)ゞ
(；´д｀)ゞ
(≧д≦ヾ)
｢(ﾟ<ﾟ)ﾞ??
?(ﾉ)・´ω・(ヾ)
/(@ﾟﾍﾟ@)
℃ↂ_ↂ