[I was] not exactly sure why all the things were being advertised. It didn't resemble anything I had agreed to do.

I'm not exactly sure what he does. But whatever it is, it is very effective.

I'm not exactly sure what he meant by that. I need to ask him about it.

They told me ... well, I'm not exactly sure how it was chosen.

if they're advertised.

We're going on as planned, sort of. I'm not sure exactly who's coming in that night, but I know it's going to be really special.