One of the best things about exchange-traded funds is how compatible they are with a do-it-yourself ethos. Unlike with mutual funds, ETFs are fully transparent and easy to research meaning investors know exactly what they are getting with each fund they add to their portfolio. On the latest Let's Talk ETFs, host Jonathan Liss takes a break from the usual expert interview format to help his friend build her own ETF portfolio.Learn more about your ad choices. Visit megaphone.fm/adchoices