character meets a celebrity

In class, we're working on character development. The end result will be a short story. Below, my character meets a celebrity:

She sat outside the Mission, in line with Yolanda. It was her turn to stay awake. The soft sounds of Yolanda's snoring comforted her. She knew any sudden movement would jolt Yolanda awake, prepared to defend. "Girl, it ain't safe out here for us," she had warned. "We gotta take turns sleepin' and watchin'."

As the sun rose, people in line stirred and started, anxious to get a hot meal. The man with the roll of cash walked up and down the line handing out money. Yolanda got a 20. She got a 5. She folded the bill in half, turned toward the wall and carefully slid the money into one of her manila envelopes.

Eyes cast down, she shuffled along the line. She could hear chatter all around. But she was overcome by the smells. The delicious smells of Thanksgiving wafting out the door, swirling around her nostrils, causing memories to crash in her brain. A tear escaped. "Aw, Tracks. Baby girl, don't cry," soothed Yolanda. "You okay, girl. You okay baby girl."

She took the tray handed her by the volunteer, smiled and mumbled "thank you." The went outside, found shade against the building, away from the others. She watched the mayor and the governor visit families sitting at the picnic tables, followed by cameras and women with microphones. A girl walked out - apron, jeans, Converse high tops, hair pulled back and tucked under a beanie. She kept her eyes down and walked toward the dumpster.

"Happy Thanksgiving" she said in a soft Southern drawl. "How y'all doin?" Her smile tightened a bit, realizing what she'd said. "How's your dinner?" she said brightly.
"It's delicious!" chirped Yolanda, just as bright. "We appreciate it so very much!"
"I'm Miley. Miley Cyrus." She extended her hand.
"I'm Yolanda. This here's Tracks." Miley and Yolanda talked a bit, then Miley walked away.
"She was nice."
"Hmph. She's just here for publicity."
"Oh."

She looked at the girl talking on the phone. Their eyes met then each looked away.