with bracken we more or less waited for him to come to us, a couple of time i was right down on the floor on his level so i wasnt towering over him, speaking softly and holding my hand out for him to come to

obviously it varies from cat to cat and ours learnt to trust us pretty quickly, less than two months after he was hiding under the sofa terrified of us, he now lets us stroke him, actually coming up to head bump us first and we can sometimes pick him up and carry him !