You encounter another boat you assess the situation and determined that you are the stand on vessel what must you do?

As the stand-on vessel, you must maintain your course and speed, allowing the give-way vessel to take appropriate action to avoid a collision. It is important to monitor the other vessel's movements closely and be prepared to take evasive action if necessary to ensure safety. Communicating your intentions through sound signals or visual signals may also be helpful in preventing misunderstandings. Always prioritize safety and follow maritime navigation rules in any situation.