Group Presentation and Practice

Last Tuesday, in Mcom class, we had a group presentation. Our group's presentation was on Analysis of complaints against Apple and the iPhone. Our group met on Monday to practice presentation. The group practice wasn't enough for me because I struggle with presentations a lot. Thus, when I got home, I practiced more, and during the practice, I recorded myself presenting to see and hear myself in a third-person's view.

I personally believe the presentation on Tuesday went well, better than my expectation. I am sure that's because of the practice. Without going over the practice many many times, I would have not done the presentation as well as I did.
Practice is very important in many cases. Sometimes I am overconfident that I don't practice. But the result is not always good. I cannot change the result ex-post, but I can change the result ex-ante. Thus, it is always good and important to practice beforehand in order to guarantee good results.