It very differs from country to country, even from region to region. Each has an own particular tradition of paraliturgical songs, that can be chanted during the whole year, as for some feasts, especially Nativity of course, Pascha too. Such songs sometimes are sung during some pilgrimages, meetings (more in villages, I think)... But as for troparions, kontakions and such serious stuff, it has to be done with more... dignity?... They are chanted, but in a proper context such as a prayer before the mentioned icon corner, before some Orthodox meetings, conferences etc.
I would say it's a different mentality in comparision with Western one