Jump Posting can happen by accident or can be used to avoid awkward posts.
If you have accidentally jump-posted someone, it is best to either post again and acknowledge them or edit your original post to respond to them.
Person 1: So how was your day Person 3?
Person 2: I love you Person 3 I jack of to you every day <3
Person 3: My day was pretty good, I had some cake that was not a lie for once. :D
Person 1: That's cool.
Accidental Jump Posting:
Person 1: S'up Person 3?
Person 2: So Person 3 I was wondering if you could edit those pics for me.
Person 3: Not much, just eating some cake *Nom*
Person 2: T_T