[youtube width="630" height="380"]http://www.youtube.com/watch?v=nLv4X1XsMdU?t=37s[/youtube]
#1 rule how to use a bong is to NOT break it, especially if its not yours… That poor kid in stripped shirt got owned! Damn, that looked like an expensive bong too… i dont know if it was his or not, but its funny regardless 
Seriously though, bongs are easy to break, just handle with care… Go SLOWLY when you put down you glass bong down on a surface, hard surfaces like glass tables or granite countertops are the worst. Actually if you are a real noob, the safest way to do this is to just not really hold the bong… just let it stand on a table, dont lift it, light it and inhale with your hand holding the mouthpieace so the bong is secure and doesnt move on the table.