What should a sailor do according to the 2nd General Order?

The 2nd General Order specifically states that a sailor must "walk my post in a military manner." This emphasizes the importance of maintaining discipline, vigilance, and decorum while on duty. Walking in a military manner entails walking with purpose, being alert, and displaying professionalism. This order is crucial as it reflects the expectations of military conduct and establishes a mindset of readiness and responsibility among personnel.

The other choices do not align with the specific content of the 2nd General Order. Keeping communications confidential is important in many contexts, but it does not address the act of maintaining vigilance while on duty. Socializing only when off duty touches on time management and professionalism but lacks the direct directive provided in the 2nd General Order. Remaining silent while on guard could imply a neglect of the required vigilance expected from a guard duty, as appropriate communication may sometimes be necessary in the context of security and reporting. Each of these points misses the core instruction conveyed in the 2nd General Order regarding maintaining a proper military demeanor while on post.