"Wow.... I finally did it. All my life I've been working on achieving something and finally... it happened. I am the best man. The -best-. Just wanted to thank you all for coming here to celebrate. I know that, being the best man, I've got a lot of responsibilities and a standard to uphold. I'm here today/tonight to tell you this: I, -the- -best- -man-, I'm gonna make it. I'm gonna do it and I'm gonna make you all proud.
(Insert someone walking up to you, whispering in your ear as you're smilin' big. Should see it in your eyes that you're listening to them... then slowly transition between cheesin', listening, incredulous disbelief... look to the person whispering to you, transition to a "omg, really?" face. Whisper back to them while covering the mic with one hand, something along the lines of... "but I thought..." or "I just really messed up", don't have to be heard, just have that appearance. So then you come back to face everyone, sheepish grin... then slowly break into your praise and jeering of the groom.)