Snail Mail returned to Boston for the first time in awhile for a jam packed night at Big Night Live in support of her recently released album Ricochet. Fronted by Lindsey Jordan, Snail Mail has always put on a fantastic show. Jordan is one of indie rock’s most compellingly understated performers, she doesn’t command the stage in a traditional sense. There’s no theatricality, no exaggerated gestures. Instead, she stands slightly angled toward her guitar, letting the songs do the work.