Groundedmodels(Siena2001b)differ fromaxiomatictheories in establishingexplicit connectionsbetweenlanguage andreality that are learnedthroughlanguagegames(Wittgenstein 1953).Thispaperdescribeshowgroundedmodelsare constructedbyautonomousagentsas a side effect of their activity playingdifferent typesof languagegames(Steels 1999),andexplainshowtheycanbe usedfor intuitive reasoning.It proposesa particularlanguagegamewhichcanbe usedforsimulatingthegenerationof logicalcategories(such as negation,conjunction,disjunction,implicationor equivalence), anddescribessomeexperimentsin whicha couple of visuallygroundedagentsconstructa groundedmodelthat canbeusedfor spatialreasoning.