Better start writing your thoughts if you are going to make a wedding toast for the couple. Although you may think that you can do this at the day of the wedding, but it is always essential to prepare this in advance so that you do not embarrass yourself.
When you start your speech, better introduce yourself first since not everyone knows you. You should also say how you know the couple and your relationship with them. After that talk about why the couple are good for each other and everything that you think is suitable for the wedding. You can even include anecdotes and stories that are not that embarrassing about the couple you are giving your toast.
It is also great if you can add humor to your speech since most of the guest would love to hear a funny speech so that they can remember you and your speech even more. If you would want to know more about giving a good toast, you can also watch some videos in Youtube since it is certain that you can find great ideas and inspirations there. And while you are giving your speech, you can also thank the groom for his groomsmen gifts since you know he gave you something you love.