While in Rome....but while in Toronto learn to wait! I walk and/or run to get to the next plane so I can wait, watch and judge people (a hereditary skill).
Probably the best time I have had here is while I have either drank or ate a banana slowly while staring at people....Either can be fun depends on what is in the area where my gate is and what's accessible!! If you are lucky you can get both and make a party of it...maybe grab a ride and do a drive by fruiting.