When you’re presenting in front of a group, you want to do your best. There are a lot of things you can do to prepare, but I advise you to remember to remember one thing: “Be prepared, not perfect.” Think about it. When you’re talking to friends, do you focus on being “perfect”? The pressure you put on yourself for perfection can be like a vice grip, and you end up coming across as stiff, impersonal, and dull as dishwater. So prepare as best you can, do lots of run throughs, and cut yourself some slack. Try to have a sense of humor, and expect a stumble here and there. You’ll be more relaxed and hopefully, more of ‘you’ will show up.