Sure, it can be an awkward situation when your boobs are so big that they make narrow passages, like hallways or doorways, impossible for others to pass at the same time, but do you feel embarrassed or proud? The enormous size of your breasts should never be an embarrassment; a smile or even a laugh, making light of the situation is the correct attitude; you have attributes others can only dream of having. Often, just a simple slight bowing motion will allow others to pass without brushing against your massive boobs, but even when that is sufficient, hoisting a boob or two can provide additional space. Of course, I would encourage you to always say something to indicate your attitude, like "Can you imagine me trying this when my implants are filled to full size?"