What we should not do with our hands is:
• Fiddle with rings, watch, cufflinks, buttons, glasses, tokens, coins, etc.
• Touching or tapping on the table, chair, hair, or face. - Hold on to the back of the chair, the lectern or the chips.
• Scratching any part of the body.
• Hide hands from public view, behind the back, in pockets, under the table, etc.
• Twist or rub them.
• Point out the audience.
• When we act calmly, the gestures coincide with what we want to say.