Feitan

He likes your hair down and into a curl cause he thinks that you're pretty in it

Gon

He likes to curl your hair at some times, and sometimes he likes braiding your hair for fun

Killua

He would colour your hair blue and curl it because he doesn't want any other guys to fall for you

Kurapika

He likes putting a braid hairband on your head and then curl the rest

Leorio

He likes putting your hair into a ponytail and then put it into locks

Shalnark

He would put your hair into different Princess hair style because he's your Prince, and you're his Princess

Hisoka

He likes to colour your hair like a rainbow because Hisoka, is just being Hisoka

Pokkle

He likes simple, yet with full of design on your hair

Illumi

Just a straight would be fine for him so you can match his hair

Chrollo

He likes being so stylish, especially emo style