Practice Makes Perfect
Unless you're a supremely gifted public speaker, it's ill-advised to try to wing your wedding toast. Chances are, your improvisation will end up rambling and well over the acceptable time limit. A well-crafted toast is like any story -- it should have a beginning, middle and end and should be somewhere in the neighborhood of two to four minutes. So, be sure to spend a little time working on your material and practicing in front of the mirror.