Keep in touch (with someone): communicate regularly (with someone)
Ron: Hey Jim, it was great to see you again!
Jim: Likewise. Let’s keep in touch and hang out next time.
Ron: Sure!
Keep in touch (with someone): communicate regularly (with someone)
Ron: Hey Jim, it was great to see you again!
Jim: Likewise. Let’s keep in touch and hang out next time.
Ron: Sure!