Food Evangelism
Food Evangelism as it pertains to Veganism refers to the idea of preparing and serving Vegan food for non-Vegans to show them that Vegan food can be just as delicious as non-Vegan food. This can come in all sorts of forms, and is one of the easiest ways to whittle away at any apprehension people have towards Veganism.
The name sounds like some sort of quasi-religious proselytizing, but when done right is an extremely civil, pragmatic, and effective means of promoting veganism, and one that should be utilized by those who want to help others reduce their intake of animal products.
How to go about doing it
While Vegan food is for everyone, who you give it to can be more effective depending on the situation.
Giving to friends, family, and coworkers often helps bridge a gap and allieviate any tensions, while giving to strangers does remove a personal element and gives random people something to think about. In either case, it alone won't make someone go Vegan, but it can help plant the seed for open mindedness.
General reduction of animal product consumption
Given the relatively limited space of the human stomach, when a person eats a food that will take up some space, which presents us with an opportunity cost. Eat one food, you have to eat less, or none, of the other.
This is another perk of Food Evangelism, albeit one that's more short term. Even if someone eats the Vegan food and isn't swayed any further towards Veganism, giving them that to eat takes up space in their stomach, meaning, if they consume a good amount of animal products, they will thusly consume fewer animal products as a result. This would apply even moreso if it's a Vegan version of a food they would have otherwise eaten, or if the food is very filling (like something rich in protein, or something super heavy like Vegan cookies and donuts).