At a friends party, I decided to break the silence once by telling this same friend's girlfriend's younger sister that I was very much into her. Not just casually or discreetly but in front of the whole party I decided to essentially give a speech which was somewhere along the lines of how I thought this lady was the most attractive human being that I'd ever laid my eyes upon, how much I thought her laugh was the best laugh I'd ever heard, when I saw her I simply disregarded what everyone else was saying and exclusively listened to what she had to say and how much I'd been secretly attracted to her for years but had never had the guts to mention it.
Words cannot explain how bad this scene actually was and how awkward everyone in the room felt, considering how blotto drunk I was - especially the lady I was attracted to, who obviously didn't feel the same way about me. I was well beyond drunk, so I think I ruined any chance of ever really getting to really know this person and our conversations are still awkward to this day.
I attempted to solve the problem by saying that I was just drunk and joking, but some of the things that I said made it quite obvious that I had genuine feelings for this person and probably would have sounded borderline creepy to most of the people present, nobody bought my joke line for a second.
Alcohol does some amazing things for confidence, even more amazing things for stupidity and complete lack of thought before opening the mouth. Maybe in my head I thought that she may have had feelings for me too and the whole room would cheer and say "yeah, you go for it opi8 etc.". In reality, the whole party basically dissipated, the lady left (extremely embarrassed) and my mate told me (as he should have) that I was a drunk fuckwit and should go to bed. Instead, I stayed up and drank the remaining alcohol in the fridge, played PlayStation and felt like a complete douchebag.