1. Explain risks of stocks/make sure stocks are appropriate for person. Assuming this is a taxable account, determine relative tax efficiency of index funds choices. TSM & S&P 500 funds are very tax efficient. Note also the tax managed Int'l and Small Cap funds.
2. But directly from Vanguard (or at least very low cost brokerage account with no purchase fees). Explain any purchase and/or redemption fees, and how they can affect return and such. Ask about extra fees associated with any investment - "account maintenance fees", "admin fees", etc.
3. Explain how index funds work, and also Dunn's Law