Let's face it, at any wedding reception the audience abhors any type of long drawn out speech.
That applies to the best man as well.
Few people would care to sit though half hour speeches listening to someone boast about the fine points of a person.
It doesn't really matter how much he has to say nor is how he tends to compliment the groom the point here is the wedding visitors don't care for long speeches.
To put it bluntly keep your speeches as short as possible.
The shorter you make the speech the better it comes out.
The best man's speech should be as short as possible and to the point.
He could very well include a short joke in the wording which may cause the audience to loosen up a bit but in the end he should toast the bride and groom and finish its speech.
Short does not indicate that you would get up on the stage or in front of the crowd and say hello and then good-bye.
Let's be realistic here.
You are asked to give a speech for a reason.
Someone wants to hear what you have to say but they don't want to hear you talk all night long.
You may be wondering what you should include in your short speech.
The best way to approach this is to introduce yourself initially, thank the groom for his invitation, say some thing about the groom that is funny, mention something about the bride as well and finally wrap up your speech wishing the couple a happy married life.
There you have it simple and short.