Lately when I hear music on the tv I start singing during the commercials. If you want to get odd looks from people try this. There is normally a giggle that follows.
i sing along to ones that have been around for ages, like bing lee and domayne but you guys prob dont know them cos they're aussie and the banana song, and the mandarin song my mum always sings random american jingles from when she was a kid like the oscar myer weiner song. i think shes crazy.