1. To move or pass (something) over a surface quickly so that it touches only at intervals; to skip.
2. To move hurriedly or as by twitching or bouncing.
…Walking out the gates of the White House, I thought about the morning at Arlington. The weather was sunny, crisp, cool; dried leaves, russet and umber, skittered across the walk. It reminded me of Election Day eight years ago, in Chicago. Obama had voted near his house, on the South Side, and then accepted victory that night, flanked by his wife and daughters, in Grant Park.