Jennifer K. answered 06/19/19
Writing/Public Speaking Coach Former CNN and AP journalist
This is a good question. I think there are two issues at play:
1) the example you provided has a dangling phrase. In other words, as you’ve explained, the example is ambiguous because of the placement of phrase “with the telescope.” If it’s in a written composition, I would suggest a rewrite like: “While looking through the telescope, I saw a girl” (if this is the case). Or “I saw the girl who was carrying the telescope.”
2) In speech, presumably due to context and earlier cues, the meaning would seem to be clear so I’m not sure pauses would be necessary in that case. Still what your raise is an issue of enunciation and pacing. A quick google search netted this article, which has some good points (see #2 and #6): https://podiumconsulting.com/the-podium-project/2015/10/4/the-importance-of-pace-and-the-power-of-pause
Check our my profile and let me know if you have other questions. I am a broadcast journalist, public speaker and a CTM with Toastmasters International.
Hope that helps.
Jennifer K.