a childhood friend is celebratinghis or her 21th birthday and me and some of his/ her friends have planned a big surprise party, i have also been given the ask to give the task to give a birthday speech right after everyone yells"Surprise!!"after my speech, everyone will enjoy the rest of the birthday celebrations.

Sounds like fun.

The real secret is to keep it short and upbeat - so that people can enjoy the rest of the party.

Start by saying that it is amazing how gfast she has grown up and now it is her 21st birthday.

Tell a couple of memories of some of the time that you have spent together - particualry as she was growing up.

End by saying that you would like to propose a toast.

After the toast - make a point of saying thankj you and telling everyone to carry on with the festivities - otherwise people will stand around waiting for the next thing to happen. (The alternative is that your childhood friend may want to make a speech)