Blatantly: home, work, car, street.
Covertly: restaurants, stores and, during the weeks I volunteer to work the audio board, at church.
I feel vaguely guilty about that last one but I work two services twice a month for a total of about 6 hours including rehearsing the band.
AT CHURCH - OOOOOooooo! I haven't tried that one yet -
To afraid I would earn a one way ticket in the WRONG direction.
I use to work the AV stuff at church I could see that -
I think in the pews may be a different story.