don't be a stranger

US /doʊnt bi ə ˈstreɪn.dʒər/
UK /doʊnt bi ə ˈstreɪn.dʒər/
"don't be a stranger" picture
1.

used to tell someone you want them to stay in contact with you

:
It was great seeing you! Don't be a stranger.
We should catch up again soon, so don't be a stranger!