1, His little brother ruffled up the bed every day.

2, The bird ruffled up its feathers.

3, Birds keep warm by ruffling up their feathers.

4, When her daughter's wedding was coming,Mother was all ruffled up.

5, He had none of that depressing fanaticism of the newly arrived Peiping students who were inclined to ruffle up their feathers at the slightest criticism of conditions in the Liberated Areas.