Trust between people can be built up over time and founded on the past actions of the other person, but it has to start somewhere. Initial trust is based on a positive outlook on humanity and the likelihood that the other person is a good example. Benevolence is this optimism applied to the other person.
Benevolence is a commitment to achieving the values derivable from life with other people in society, by recognizing their humanity, independence, and individuality, and the harmony between their interests and ours. It can be seen as optimism applied to other people and relationships. It does not consist of any particular set of actions, but a general good will towards others based on the benevolent universe premise.
Benevolence is the commitment to create trade and trading opportunities. Economic trade, exchange of knowledge, and mutual protection all require some level of trust between people. Opportunities for trade do not simple present themselves. They must be created through our own initiative. The world does not beat a path to our door; we must go out to meet it; we must extend ourselves. For example, if you are optimistic about other people and relationships, then perhaps you will treat a stranger like you would normally treat an acquaintance and an acquaintance like a friend. This broadcasts a friendly, non-hostile, attitude and a willingness to trade which is a prerequisite for peaceful interaction.