I think in situations where you know you are parting from one another, each person will react and cope with that in T/their own way. If i am truly emotionally connected with someone, i will cry, but i will fight it, because i want to be stronger than that. But knowing what i do now, i would let the tears fall as they come, because they are a part of who i am, and they show the depth for which i care and am struggling with the thought of saying goodbye. I may fall to pieces when i can no longer be seen or heard, but if i think my One would know me enough to see the struggle it is to begin with, and not discount how deeply His leaving affects me. It wouldn't matter if it was in person, on the phone, skype, or through our chat online.
I like to think that in person He would smile at me, and my sister would hug me tight. Id be a tearful mess, but I'd be T/theirs, and T/they'd love me anyway.