grammar points

[felygres]

Can you please help me...What are the grammar points in the underlined expressions and how can I explain them and teach them to the class? Thanks a million.

The O'Charley's cheese pull is less time-consuming. For 45 minutes, Mr. Somoroff shuttles between the set and the room where Ms. Katapski and her colleagues await the film footage. The key is getting the exact amount of cheese to stretch and give way, along with a little bit of motion on the surface of the dish, so the other noodles don't look paralyzed. Then again, too much motion makes the shot look fake.
It takes a while, but the O'Charley's contingent and Mr. Somoroff finally like what they see.
"I like the sloppiness of this one", Ms. Katapski, as a cheese pull plays in a loop on a TV screen.


- "I had the doughnut strike a paintbrush to get it tumbling"

[5jj]

Not very helpful, but I have to say that if I were teaching grammar points I would use materials in which the immediate meaning was more obvious than in your text.

[felygres]

I think it has something to do with Acc+Infinitive and Nom+ Inffinitive.