Has decreased in recent years
Answer: There´s an even split between genetics and life experience: both have shaped them.
Explanation:
Although personality traits are largely defined by our genetic composition, that´s not the only element to be examined. Personality is not determined by a single gene, but rather by the actions of many genes working together. Furthermore, both genetic factors and environmental circumstances are key elements in building our personality. Having a specific model of genes doesn’t inevitably develop a distinct trait, because some traits may happen solely in some settings.
It depends on the type of the speech. If it is a short, impromptu or unimportant speech, there is no problem in displaying the aid. If it is a long, or important speech, it is better to not display the aid but if the speech is not memorised the aid should be somewhere where it doesn't draw attention and brief glances should be used if needed. Always look at the audience and not down at the aid.