First Lady Melania Trump spent Thursday visiting some of the sickest children in the nation’s capital, joining them in arts and crafts activities ahead of their hospital’s Fourth of July celebration.

She met with patients and caregivers at Children’s National Hospital in Washington, D.C., holding the hands of young patients as they led her through the treatment areas and a “healing garden” she dedicated during her husband’s first term, reports said.

An impromptu arts and crafts session was taken over by Melania, who painted a red heart on a rock as several children played with stretchy slime nearby.

“Wow, that’s a big slime!” she said while watching the kids stretch the gooey substance.

Handouts featuring the first lady’s “Be Best” initiative were distributed, including gift bags containing blankets, teddy bears, and t-shirts.

Between activities, Melania asked the children about their favorite sports—one answered football, another soccer, and a third mentioned golf.

She inquired about the group’s favorite songs before conducting an informal poll on their preferred desserts. When chocolate and ice cream were mentioned, hands shot up eagerly across the room. “I like it too,” she said, according to the AP.

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Aides confirmed that Melania met privately with heart and kidney patients and their families during her visit, The Hill added.

The first lady and President Trump are set to attend a military family picnic at the White House and watch Independence Day fireworks before departing for the president’s New Jersey residence for the weekend.