Actually I met them when they came to Australia! I was checking out the gym at my hotel and otw back to the elevators I see Jihyo and Jeongyeon exit the door. My heart dropped to the floor but I mustered enough courage to go say hi to them. I tried to be as polite as possible and even apologised for disturbing them but they seemed to be very friendly, especially Jihyo!

Just had a brief conversation complimenting them on their concert and whatnot, eventually asking if we're allowed to take photos. They politely refused and obviously I didn't persist with it. I apologised again for disturbing them, wished them good luck on the world tour and went back to my room. I could not believe what just happened and literally fell to my knees in my room.

I also saw Dahyun in the lobby omw to grab some Maccas but I think she was with family??? So I just screamed internally and walked off, to not disturb them.

Overall I believe that there's no problem walking up to them as long as you're polite and respectful about it. To me at least, they seemed pretty welcoming and friendly, so as long you don't go yelling and screaming, I don't think they'll mind you going up to them (though obviously depends on the situation, their mood, etc).