If you look alert but relaxed, your audience will mirror this and feel the same way. Stand up straight, but relax any tension or stiffness in your body.

It’s a good idea to gesture with your hands in such a way that helps to make clear what you are explaining – but only do this if it feels natural, and try not to wave your arms around unnecessarily.

It is important to celebrate your own uniqueness and use your own way of communicating.

Think about how you would tell your friends an exciting thing that happened to you today, and what gestures you would naturally use.

Pacing or moving around as you talk can sometimes add to the excitement of the story, but it can also be distracting.

It is a good idea to video yourself to see if there are any things you are doing that are distracting or give away your nerves. Fidgeting, fiddling, shifting your weight, swaying or playing with a pen are classic examples of this.

One of the most important areas of body language is eye contact. This can really help an audience feel immersed in the story, but can also help you, as a presenter, to feel less nervous.

A few seconds of eye contact with individual audience members will actually help to calm your nerves.

If you can get an audience to really 'see' what you’re trying to explain, they will not only be able to understand it better, but they will also remember it.

Analogies and metaphors work really well, especially if there are no real-life examples to draw on.

Think of your talk as a series of self-contained mini-talks, then if one part goes wrong, gets forgotten, or simply doesn’t feel like it’s working on the day, just jump to the next part – you can always go back to it later.

Nerves are a perfectly normal phenomenon and are a very useful way of making sure that you are fully energized, revved up, and ready to deliver your talk.

Embrace the adrenaline rush and try to think of it as excitement rather than fear.

It can be helpful to do some physical exercise a little while before giving a talk. This wakes up your body, releases tension, and gets the creative juices flowing.

You can also listen to music that inspires or excites you. And then, just before you're ready to go on stage, try to do some breathing exercises or meditation to calm your heart rate and help you focus.