How to Make a Semi Feral Cat Your Pet. You may find a cat living in the street who used to belong to somebody, but has been out on his own for a while and isn't exactly used to being a family, house cat--or you may just come across a feral cat that has pet-potential. Here are some steps you might try to make a "semi-feral cat" your pet.
Start by leaving food and water for the cat in your yard, on the porch or in your garage if there is access. The cat will need to eat regardless, whether living with you or remaining on her own.
Leave comfortable bedding for the cat, such as a towel or sheet. Comfort just may be the "deal breaker" for the cat to come back again--and again.
"Read" the cat when you can get close enough. You can often tell by the look in their eyes if they want to be close to humans; a distant look often means they are simply feral and want no part of humans. Also, notice if the cat brushes up against you; brushing can very well lead to curling up in your lap. Purring, of course, is for sure a positive, telltale sign.
Have patience. This is very important to keep in mind, because sometimes all it takes is a little time, and you don't want to rush or force it.