If you decide to have your friend or relative act as a Master of Ceremonies, choose someone easygoing, comfortable in a large crowd and has plenty of public speaking experience (especially with large audiences). Being an MC is a big responsibility, so even if your potential MC has the public speaking experience and has known all of your guests for a very long time (i.e. is, among close friends), they will likely still feel jitters simply from the weight of the responsibility you put on them. When choosing your wedding MC, look for someone responsible and accountable who has demonstrated these traits consistently in the past. The last thing you want is for your wedding MC (who may be a charismatic "social butterfly" that enjoys public speaking) is to get side-tracked by the food, wine, and good company and even fall asleep on a couch outside the wedding reception (you may laugh, but this has happened in the past!).