It varies. If the other person runs from me first then I
will run from them. If they are struggling to get points then I will go to them, but usually I stay where I am and if they come running then fine you've made the effort so hoover me.
The argument for saying that it gives the other side two points, well so what?
1) it only happens five times so that is ten points max (per person) and if they let you hoover them back then more points/credits for both of you, woot!! (called teamwork, baby!)
2) you give them two points BUT in the time it takes for you to become normal again without hoovering you could have caught ten ghosts yourself. Give away two points to earn yourself ten points, makes sense to me