so basically aren’t these the same thing?! which do i get? help
What are you going for? As in what type of reactions do you want to see.
IH and IO are similar, but also very different in a number of ways.
IO: Fun, upbeat, chatty.
IH: Friendly, close, penetrating
to add:
from what ive gathered, openness promotes more of a goofy, loose form of communication and honesty is deeper.