Kaomoji is perfect for saying hi or goodbye in an unusual way. The symbols used for greetings/ farewell include forward or backslashes. The most creative variations involve the use of ノ or ノcharacters. If you want the emoticon to wave with a hand, you can use quotation marks in combination with a slash.

Different actions
( ̄▽ ̄)ノ(´• ω •`)ノ(^-^*)/
(´• ω •`)ノ( ° ∀ ° )ノ゙( ´ ∀ ` )ノ
( ´ ▽ ` )ノ(^0^)ノ~ヾ(・ω・)
( ̄ω ̄)/( ´ ω ` )ノ゙(⌒ω⌒)ノ
(o^ ^o)/( ̄▽ ̄)/(o´▽`o)ノ