Check how social your pet is with others
Both Dogs and Cats are social animals, but many a time they react just opposite to their nature. So, its very important to know how social your little pet is to other animals, before bringing a new friend to them.
Create enough space for them both
Stop the pets from harming each other
Separate their rooms, toys, beds, treats and basically EVERYTHING!
Start off slow. Animals are extremely sensitive and might not adjust to new creatures and ambience that easily. So, give both the pets enough time and space to get used to having another animal around.
Leash the pets before the first meeting
The process of interaction