Nothing, absolutly nothing succeeds like enthusiasm - it's infectious. Once the audience spot that you have a passion for your subject they immediately begin to warm to you and will ignore any imperfections or omissions in your presentation. So get passionate, get excited and get enthusiastic!
you’re probably passionate about the subject. So make sure you project that passion during your presentation! Raise your voice when it makes sense, be effusive, throw your hands up in the air when you’re making a point! That type of energy is totally infectious and your audience will appreciate the effort.