Familiarise yourself with Skype. It’ll be your primary way of communication.
Do not call her on the phone when she’s on Standby.
Do give importance to time, preferably Military time. 21:16 is never the same as 21:17.
Remind her which country she is in first thing when she wakes up in the morning.
During dinner, when she asks you whether you like chicken or beef… Oboohooy! You better think fast!
Prepare yourself for her jetlag, otherwise known as the PFS or the Post Flight Syndrome.
Do not wake her up when she’s sleeping, even if you wonder “ she must be hungry after sleeping 18 hours already!” Again, let her wake up by herself.
Do not be surprised if she wants you to take several shots of vaccines: Hepa B, Hepa A, Meningitis, Yellow Fever etc. etc.
Stay away when her roster comes out. That’s the next worse time to PMS.