for walk
limp, stroll, amble, shuffle, wade, strut, sashay, hobble, lurch, flounder, stagger, stalk, prowl, hike, mosey, tiptoe, careen, trudge, traipse, shlep, sleepwalk, dodder, totter, march, flounce, lumber, trample, step, hoof,airing, carriage, circuit, constitutional, gait, hike, jaunt, march, pace, parade, perambulation, peregrination, promenade, ramble, saunter, schlepp, step, stretch, stride, stroll, tour, traipse, tramp, tread, turn
for laugh
cachinnate, chortle, chuckle, convulse, crack up*, crow, die, die laughing*, fracture*, giggle, grin, guffaw, hee-haw, howl, roar, scream, shout, shriek, simper, smile, smirk, snicker, snigger, snort, split, tehee, titter, whizgigging, whoop, belittle, deride, hoot, jeer, lampoon, mock, scoff, taunt, amusement, cachinnation, cackle, chortle, chortling, chuckle, chuckling, crack-up, crow, crowing,glee, guffaw, guffawing, har-de-har, hilarity, howling, laugh, merriment, mirth, peal, rejoicing, yuck
for talk
allege, articulate, assert, aver, blab, break silence, chat, chew*, communicate, converse, convey, declare, deliver, descant, discourse, drawl, enunciate, expatiate, express, gab, gas*,jaw, lip, make known, make public, modulate, mouth, mumble, murmur, mutter, open one's mouth, perorate, pop off, pronounce, put into words, rap, say, shout, sound, speak, spiel*, spill, state, tell, utter, verbalize, vocalize, voice, whisper, yak, yakkety-yak, yamme