If you can grab a rag or similar object, muffle the top of the can and press down over that spot where the "mouth hole" is with the rag-hand as you pop the tab with the other. Try and make the rag-hand have no air gaps. In very quiet environments you will still be heard but should lower the volume a bit!
If you can grab a rag or similar object, muffle the top of the can and press down over that spot where the "mouth hole" is with the rag-hand as you pop the tab with the other. Try and make the rag-hand have no air gaps. In very quiet environments you will still be heard but should lower the volume a bit!