1) Became friendly 2) Become cordial quickly 3) Click 4) Click, so to speak 5) Clicked 6) Get along great 7) Get along immediately 8) Get along well 9) Got on swimmingly 10) Had a great first date 11) Like each other immediately 12) Really click Found on https://www.crosswordclues.com/clue/hit-it-off
1) Became friendly 2) Become cordial quickly 3) Click 4) Click, so to speak 5) Clicked 6) Get along great 7) Get along immediately 8) Get along well 9) Got on swimmingly 10) Had a great first date 11) Like each other immediately 12) Really click