A laid-back family, Conversa fonts are available in two weights, both all-caps with alternate glyphs on lowercase slots. Choose your preferred alternates by hand or simply turn on the Open Type contextual alternates feature to make them automatically cycle. There are some ornaments too, for a little twist here and there.
Conversa is a new take on 'Outside In' font, which is part of the 'Outside' font duo.
Give it a try, easygoing-ness guaranteed!