Thread moved from kilt advice to miscellaneous as not kilt related.

Personally speaking I love to sing an anthem if I know it but would not do the hand on heart thing either even for the UK anthems.

Otherwise I would just stand out of respect.

But if you don't know it then don't try to sing it as a former Secretary of State for Wales learned to his cost - http://www.youtube.com/watch?v=RIwBvjoLyZc