ponder, cogitate, musing, dwell, philosophize, agonize, obsess, expound, wallow, fixate, ramble, bloviate, contemplate, dissect, mope, prattle, pontificating, reminisce, mull, meditate, delve, philosophise, opine, linger, yammer, rhapsodize, prognosticate, mythologize, fantasize, kvetch, hyperbolize, limn, wander, psychoanalyze, meander, commiserate, natter, becloud, gnaw, fret, discoursing, romanticize, lament, introspect, woolgathering, revel, moralize, theorizing, editorialize, belabors, expatiate, chew, explicate, contextualize, savor, declaim, enlighten, deconstruct, blathering, gloat, soliloquizing, stewing, dawdle, grumble, parse, posit, talk, overdetermined, intellectualize, kibitz, debating, flit, sentimentalise, marinate, rehashing, gestate, loll, bicker, sulk, bemoan, intuit, luxuriate, anguishes, explore, regurgitate, illumine, moan, exult, preoccupy, critiquing, juxtapose, theorise, rhapsodise, sentimentalize, elide, cluck, digest, quibble, tiptoe, fester, quizzing, synopsize

bethink, brood, deliberate, question, wonder, worry

cerebrate, eat, think

chew over, mull over, muse, reflect, speculate, think over