I know it's normal for toasts to be given by the best man/maid of honor and maybe a parent from each side of the family, but how do these people know to give toasts? Do you ask them to? It somehow seems really strange to ask (it seems like it would fall under a similar category as throwing your own shower to be like "hey can you say great things about me?"). Did people volunteer to toast you, did you ask them, or how did it happen?