childish, (dis)respectful, earnest, harsh, (in)tolerant
judgmental, open-minded, persistent, polite, sensible, sensitive
sincere, stubborn, superficial, thoughtful, (un)interested
acquaintance, colleague, companion, (in)formal, loyal, mutual friend
outcast, peer, to blend in, to break up, to have in common
to help each other out, to lose touch with, to share with, to spend time with
trust