I'm looking for an easy way to check if people around me can hear any noises coming out of my (in-ear) headphones.
Of course there's always the possibility to take the headphones off for a moment, and listen if you can hear anything while not wearing them, but since the volume and the bass isn't the same in every song, this probably isn't the way to go, if you are in public (e.g. in the train).
So has anyone got an effective and maybe more secret way to check this?