Can leukaemia patients walk, talk can do things like normal people?

If they feel well: enough, they can do many things. They may need assistance, to do things if too tired to walk. Otherwise, it shouldn't be a problem unless they have received a bone marrow transplant and on immunosuppressive medications. Then they have to be isolated and wear a mask. So they don't get pneumonia or infection that could kill a person. So it all depends which leukemia, and what stage the person is in.

Yes, most of the tim: Yes, most patients can do 90% of the activities unless they have an infection which can make them quite ill for a few days. Infections are common following chemotherapy which lowers the blood counts. As soon the blood counts recover, they are pretty much back to normal. Of course it depends on the age of the pt and the type of Leukemia(there are 4 different types ,each one being different disease)