Well, Ivy wasn't going to let this stop her completely. After they made it inside Adrian told her to save them seats while he got popcorn. It was time to put part two of her plan into action.
Now that she was safely out of sight—Lydia and her friends were going to see a chick flick—she used thought projection with as much intensity as she could muster. 'I should buy Ivy Sour Patch Kids' over and over.
Since she couldn't hear Adrian's thoughts to know whether or not it clicked she would have to see if he bought them or not when he came back. Even if it did work she had no idea how to proceed with that information. But for the sake of her curiosity she had to try.
She took off her hood and put in earplugs so at the very least she wouldn't go deaf from the overly loud movie theater speakers while trying to fend off several hundred inner voices at once. They were hidden behind her hair so he shouldn't be able to tell as long as she read his lips if they talked during the previews.