Eavesdrop

The caster murmurs an arcane phrase, and touches their ear. For the next 10 minutes until concentration ends, they hear every conversation within a fifty foot radius as if it were occurring right by their ear. This begins as an overwhelming rush of overlapping voices, and becomes more manageable as the caster chooses which conversations they wish to listen in on, and which to block out. 

Note: This does not mean that they understand what they hear. The caster doesn't magically speak the languages they hear spoken.