Not sure if this was posted already.. some may be aware.
Public Display of Affection
In the Navy physical forms of affection such as hugs, kisses, and holding hands while in uniform are known as a "public display of affection" (PDA) and are forbidden.
There is one exception: families saying goodbye to a sailor before a deployment or greeting a sailor returning from deployment or long separation. Boot camp counts under this exception, with limits. One enthusiastic hug of greeting and a quick kiss are acceptable. French or extended kisses are not. Nor are extended hugs, hanging off your sailor, etc.
Hand-holding at any time is forbidden. There is a compromise, and I consider it to be a fairly romantic one. A sailor may offer his arm to his girlfriend/wife/mother, she lays her hand in the crook of his LEFT elbow in a formal escort-type pose. Likewise, a female sailor can take the RIGHT arm of her husband/boyfriend/father with her left hand. In a truely romantic gesture, men may lay their right hand over their lady's hand (to keep it warm, or for skin-to-skin contact). The sailor must ALWAYS have his right arm free to salute an officer or flag, should one show up.
Also, just because you aren't on base, don't assume they aren't looking. RDCs and other boot camp personnel also go to the mall, out to restaurants, to Chicago, etc, and they will be looking for new sailors breaking the rules. Some may actually be assigned this job in popular venues. Even if they run into the recruit by chance and are just out with their own family, they will report the new graduate. You won't likely see them because they will not be in uniform, but they will see you.
And no, they won't punish YOU. They will punish your sailor when s/he returns to barracks. The most common punishment is to have their liberty revoked the next day, or if the behavior is observed on the final day of liberty, new sailors can be retained for an extra week of boot camp. These are not idle threats. They actually do it.
Your sailors will be wearing their dress blues, not their whites, on Friday at PIR and after. If you wear something light colored, be sure to bring a lint brush for your recruit to "clean up" his or her blues. They're wool and pick up just about anything. If you are bringing a pet, bring one of those sticky-tape rollers to de-fur your sailor.
On Saturday and Sunday they will be wearing their service uniforms, which is a khaki shirt and black slacks or skirt.
They start wearing whites the weekend before Memorial Day, so you will probably see them in their whites when they come home on leave after A school.