FourSquare, a mobile application game, is the topic for the February session of Mid-Day with Merry at the Fairfield Public Library at noon Feb. 16 in the Rotary Room.

FourSquare challenges users to explore, experience new things and rewards them for doing so. Merry Uk, library and town webmaster, will lead the discussion.

The event is free. For information, visit www.fairfieldpubliclibrary.org or call 203-256-3160.