Hatter's expression is one of complete delight. "This is brilliant! Perfect! Genius!" He flings himself onto a couch with an expression of joy. "Come on, come on, you have to sit down too! We'll try them all!"
Alice complies with a sigh. She should have known better, but now there's no chance on earth she's getting out of here with Hatter any time in the next several hours. He said he was only looking for an armchair.
Why it didn't occur to her that Hatter would love IKEA, Alice wasn't sure.