u/PoorPigeon

helloo, forgive my lack of knowledge...

I recently got this and I've always thought I knew the gist of how a bong works, but now i'm not so sure. The rubber around the bowl stem thing is so tight that it barely comes out, like I'm very worried I'll chip the glass if I try too hard. there is also no hole for me to put my thumb over, so I'm not sure how to get that pull of clean air...

I've been looking all over the internet for an answer so this is my last desperate attempt, I'll appreciate any help or advice!!