Ownership is important to them. Give them responsibilities based on individual talents and interests, then step to the side, providing support from an advisor vantage point. Practical is their first name . Also make sure there are tangible results that are evident to your young adults. Young adults get excited about these opportunities.
Relationships are a primary concern .
Beyond their peers, young adults are also looking for authentic, mutual relationships with adults. Select some empathic adults to initiate personal relationships with one or two of your young adults. Start a mentorship program in your church. Create social events that are more relationally structured and less program structured. Intentional ministry efforts to get to know young adults personally will make a substantial difference.