NOTHING of substance: Let me recite..
"Dear Sis, hope you are doing well, I am fine. Mom and Dad are fine too. Your other siblings are well too and considering going in to the NAVY as they hear good things from you just like your older relatives that served with the NAVY with distinction, especially your grandfather ADMIRAL________(insert name here) who recently retired.
Respectfully (not love) your brother,
+1 on that.If it was my sister, I would just send moral support via letters.
DO NOT put anything that would attract attention to her such as your proper rank, flags, or much of anything other than a white envelope, address, and a stamp.
Unless she writes and/or calls with a specific request, let her handle her own with letters to and from home and leave it at that. The amount of room for items sent and personal free time is extremely limited.
Check my Signature for how I know about this...
When I get the chance to get away from the family I usually head over to Manchester. 20AMXSravenkeeper, I noticed your in sumter SC, Shaw afb. I also am staioned at Shaw. Where do you go to shoot? I compete at Mid Carolina Rifle club, in IDPA and USPSA. also what squadron?