붙임성이 · 붙임성을
sociability, knack for getting along with people
Example
동생은 붙임성이 좋아서 친구를 쉽게 사귀어요.
My younger sibling is very sociable and makes friends easily.
Word parts
성 nature, quality
붙임 'attaching' (from 붙이다) + 성 'quality' — sticking easily to people.
Good to know
Pronounced [부침썽]; the usual pattern is 붙임성이 좋다 or 붙임성이 있다.