During a presentation, it is best if the presenter maintains a semi-relaxed stance. This will put the audience at ease but still maintain a formal atmosphere:

• A rigid stance will make the audience uncomfortable and will cause the audience to focus on the stance of the presenter. A rigid stance may also be interpreted as fear on the part of the presenter.
• A relaxed stance is inappropriate for a technical presentation: the presenter has a topic which he or she wishes to present to a professional audience. Drooping shoulders or a slouch will appear unprofessional and this will adversely affect the presentation.

The presenter should be positioned (where possible) so that he or she does not block the screen to any portion of the audience.

The arms of the presenter should also be semi-relaxed but ready to make an appropriate movement. This, of course, indicates that under no conditions should the hands of the presenter be in his or her pockets. In general, the arms and hands of the presenter should not be in contact with each other for more than a few seconds when making a gesture to catch the attention of the audience. Any other arm contact is usually negative, including crossing arms (defensive), clasping hands (elementary-school look), and one hand holding the other elbow.