What is he initiates conversation but stops?

Initiating a conversation but stopping can be an indication of shyness or uncertainty. An individual may feel hesitant to continue the conversation due to anxiety or lack of confidence. It can also indicate disinterest or a lack of connection with the other person. In some cases, the initiator may stop the conversation because they feel uncomfortable discussing certain topics or are unsure of how to respond to the other person's comments. Overall, initiating a conversation but stopping can be seen as a missed opportunity to connect with others, but it also highlights the importance of taking the time to build relationships and establish rapport.