When a man says "keep in touch," it typically means he wants to maintain communication or contact with you in the future. It's a friendly and informal way of suggesting that he would like to stay connected, even if you may not see each other regularly or if you're parting ways for a while.
In various contexts, it can have different implications:
After meeting for the first time: If you meet someone new and exchange contact information, saying "keep in touch" can be an indication of interest in continuing to get to know each other or potentially building a friendship or relationship.
At the end of a conversation or meeting: When parting ways after a conversation or a meeting, saying "keep in touch" is a polite way of expressing a desire to stay connected and possibly have future interactions.
After a significant event or life change: If something significant has happened, such as a job change, moving to a different city, or the end of a school semester, saying "keep in touch" can signify a desire to maintain the relationship despite the changes.
It's important to note that the phrase can be used casually without any deeper meaning. However, in some cases, it may suggest a genuine interest in maintaining a relationship, whether it be a friendship or something more. The real intent behind the words can often be inferred based on the context of the conversation and the relationship between the two individuals involved.