what should kittens be doing

my kittens were born on the 19th of april and so are almost 4 weeks old.
is there anything i should be doing with them in regards of development, or will molly do all this her self?

i have been bringing the kittens out onto my bed a few times and letting them explore. they are getting stronger on there legs, but are still a little shaky.

they are lookign really well, and there hearing and eye site has really developed they look towards me when i make a sound.

i have tried them on a little kitten food, one of them did have a lick, and i have been a bit naughty and have been putting a bit of mushed up kitten food on there frount paws for them to get the taste of it. it has seemed to work a bit.

however they still dont seem to want solids that much. and im nowhere near weaning them.

they have enougth room to walk around in the nest and i have put a small box in there for them to climb and hide in, witch they seem to like.
however i was wondering what else there was that i shoudl be doing.

My kittens at 3 1/2 weeks started to eat wet kitten food mixed with KMR. I also started to show them the liter box. Now at 4 weeks their all over the place. I had them in a closet with a babygate, not the gate has moved to my bedroom door. They have full run of my room during the day. After I feed them I do put them in the closet with the liter box cuz 2 still don't use it except for play. They love toys! They think the balls with bells are the best thing in the world!! They are also starting to climb cat trees and my curtians so I had to tie those back. Well I hope this helps some.
Melissa

Hay you tried them on mussy food yet...