My son is three and three months. His conversation is probably better than some, he's very clear and talks in long sentences. More a curse than a blessing at times, SCENE: 3 yr old boy hops down from table, leaving dinner untouched: ME: "Oh, are you waiting for it to get cooler?" 3 YR OLD: "No, I'm waiting for it to get gooder". sigh.
He can throw, and catch a ball, kick a ball, climb, jump, hop, run at a real fast pace, stand on one leg, bow (like a ballet dancer!!!)He can count to 5 but not reliably further, recognise letters A, C, G, H, J, L, M, N, O, P, S. He can recognise his name, mummy, daddy, nanny, granny and reliably read these even after not seeing them for a day or two. He can use a mouse to click, selct and drag objects, and use the arrow keys on a keyboard. He uses his imagination all the time and plays self-generated games for prob. 80% of a day.
He can't draw - holds a pen with a 'fist' grip and scribbles, though he can just about do a circle if prompted. Can't write anything approaching a letter. He certainly can't do up knots, and doesn't find threading beads or buttons easy at all, gives up! Doesn't get himself dressed because he is a little naturist and just has no interest in wearing clothes.
I guess it's ALL down to what they're interested in really - if it interests them, they do it!