The Way You Walk
You can also tell if a person came from the military by watching how they walk. They might be a mile away, but even then, it is easy to see that each step is taken with control and purpose. Aside from that, you should make sure to take quicker strides if you want to walk beside them!
Military Time
Even if you are not a soldier, you almost definitely know how to read the time. However, military time might not be what you are used to. Nonetheless, it is much more convenient. After all, it lessens the confusion since there is no AM or PM used.