Be careful, watch your behavior with other people, be kind.
Offering food to students at the center is a way of collecting unbelievable merit, because students are the pores of the guru. Disciples of the same guru collect more merit from offering food to fellow disciples than from offering to the Buddha, Dharma, Sangha, and numberless statues and stupas. People don't think of this, they think only of offering food in monasteries, but you can collect merit this way, too.
Whenever you meet students with the same guru, if you offer things to them with the recognition that they are the guru's pores, as they have the same guru, then even if you offer chocolate, water, money, anything, that is an unbelievable way to collect merit. If you offer to many Sanghas who have the same Guru, then you are making offerings to that many pores of the guru. This is the easiest way to collect skies of merit through offering. By offering even just one candy, flower, or grain of rice to a statue of Buddha or even a visualized Buddha, you collect skies of merit, but offering to students in this way is much more powerful than offering to the three jewels (Buddha, Dharma, Sangha), as well as all the statues, stupas, and scriptures existing in all directions. These benefits should be understood, so that when you make offerings to the guru's pores, you think correctly. This is the best business.
Sometimes centers don't have much money, but if the director knows Dharma, he or she can very skillfully create merit without needing much money. When you meet people and support people, you also collect merit, which means that you can achieve enlightenment, and support one's own and others’ happiness. If organizers at centers are not skillful and wise, knowing how to take care of people, then even having a geshe teaching Dharma may not be enough. Developing the center doesn't only depend on the teacher, but on how you look after people. People can be made to feel welcome so they are attracted to come to the center, or not. So, we must pay attention to this.
The essential thing is to make people happy, and serve them well. This helps to build up the center, and to get material support very easily, without pushing. The purpose, of course, is to have more facilities, because then the center has more ability to spread the Dharma, and can offer more comfort, so more people can enjoy receiving the Dharma, and you can benefit them more, liberating them from oceans of samsaric suffering and bringing them to enlightenment.
You need to be aware of so many things. However, the key thing is to know how to take care of people. You must cherish every person who comes to the center, feel that they are so precious, and take care of them. Respect naturally comes from that, then caring, and the person is so delighted.
There are so many opportunities to collect merit for the center if you know the Dharma. Even just offering a bowl of water or cup of tea to a person who is a student or disciple of the same guru collects so much merit.
This is one way to build up the center. Think big. This is a bodhisattva's skillful means to benefit sentient beings.