Michelle Obama's speeches to government employees have been warm and rousing, something akin to pep rallies, first lady style, as she has thanked them for their work. “I’m visiting — trying to visit all the agencies here to say a few things — one, to say hello,” Mrs. Obama said as the crowd roared back, “Hello!” Indeed, Mrs. Obama seems to savor her role as a bridge between the White House and the community. Last week, she took time to hug, shake hands with and speak to dozens of government employees — from administrative assistants to agency heads — some of whom said they came close to tears at the sight of her. (“I got a hug!” one woman shouted jubilantly. “I got a hug!”) Last week, she took her staff to lunch at Five Guys Burgers and Fries, where she had a cheeseburger, French fries and a Coke. And when a little girl at the charter school visited by the Obamas announced that she dreamed of becoming first lady, Mrs. Obama flashed her self-deprecating wit. “It doesn’t pay much,” she advised.