Wuzz

Why wouldn't you want to be in the same state as the girl ?
After all, that's what you're really hunting for.
Going into the state will even empower her trance as it will have the same effects as pacing/leading, and when you're both high as kites and intensely connected, there's no way you're not going to anchor it to tons of stuff, so that it can be easily triggered the next time you and she get to business.
Seriously, all this shit about how to put someone in a trance without going into one yourself is counter-productive.
If you start going, practice going even deeper. Then pace your trance to hers and lead her deeper, and deeper, and deeper, until you're both so deep "the rivers are going to weep, and the mountains going to shout "Amen!"" (as L.Cohen put it)
Learn to go into these states without the words, and soon enough you'll be able to simply pace and lead her into the same state whilst talking about mundane shit like the weather.
Cheers
