“They tend to be intense, while also being quiet, enjoying time with a small, close-knit group, going deep in conversation, [and] actively listening, before stepping away to recharge alone,” he continued. “They are likely to enjoy routine, space to reflect, and doing things that have meaning.”
Article source: https://www.huffingtonpost.co.uk/entry/rarest-personality-type-infj_uk_6a59f3d2e4b0dbc76585e125