Dave T-W@clacke I agree, it's social filler, much as "Bless you" when someone sneezes. I guess it's recognition that a mistake or (loud noise) has been made in a public space, and it acknowledges that awkwardness and allows it to defuse. Same as loud yawns or burps (from either end).
GNU social JP is a social network, courtesy of GNU social JP管理人. It runs on GNU social, version 2.0.2-dev, available under the GNU Affero General Public License.
All GNU social JP content and data are available under the Creative Commons Attribution 3.0 license.