Use exclamation points in your emails if you want to look friendly, but avoid using them to look assertive (e.g. send it by EOD!). People will perceive you up to 13.5% more positively.
Gesture with your hands when presenting to appear more competent, and make people perceive you up to 9% more positively.
Funny ads from B2B brands (e.g. industrial adhesives) can make people like the company up to 17.9% more than non-funny ads do.
