A sociable nature in a small frame
Most Maltese are not dog-aggressive or dog-obsessed; they sit in the agreeable middle, pleased to greet, willing to play, and equally content to curl up near a companion. Many live happily as the second dog in a home, and breeders often note that a Maltese puppy raised alongside a steady adult dog learns household rules faster by copying. At home, a companion of similar size — another toy or small breed with compatible energy — is the classic successful pairing, sharing beds, walks, and gentle games without either dog living beyond its physical depth. The breed's confidence, when it has been built by kind early experiences, surprises people who expect a fragile temperament to match the fragile frame.
Where other dogs become a problem
The dangers are mostly mechanical. A friendly large dog playing at full tilt can knock a Maltese flying, land on him in a wrestling roll, or damage a leg in a doorway collision at feeding-time excitement. Off lead, a Maltese who runs up barking at a big, reactive dog is in real peril, because his size leaves no margin if the encounter turns. Temperament cuts the other way, too: a Maltese who missed early socialization may cope with overwhelming dogs by lunging and snapping on the lead, a fear display owners misread as boldness. Both pictures argue for choosing his company deliberately rather than letting parks and pavements decide for you.
Introductions that respect the size gap
Meet new dogs on neutral ground, on leads, with a parallel walk before any sniffing, exactly as you would for a big breed — small size tempts owners to skip steps by simply carrying the Maltese overhead, which teaches him to bark from altitude and feel trapped. Let greetings be brief, reward calm disengagement, and watch for the Maltese signals of overload: tucked tail, hard staring, freezing, or frantic barking that does not settle. With a new housemate, separate feeding spots, duplicate the beds and chews worth guarding, and supervise until you have seen both dogs choose rest over pestering. A resident gentle older dog usually accepts a Maltese readily once the puppy learns not to swing from its ears.
Playmates, parks, and daily company
Choose his regular play group by temperament and scale — small-dog sessions, friends' calm dogs, a known walking group — rather than the free-for-all corner of a busy dog park, where one rough adolescent can undo a small dog's confidence in seconds. At home, give him gated refuge: a pen or room a larger housemate cannot enter, where he eats, chews, and sleeps in peace. Two walks a day can be walked together once manners are established, but keep one solo outing in the week; dogs who do everything together sometimes struggle when one is at the vet or groomer, and a Maltese benefits from knowing he can cope alone.
Keeping his social map with him
A Maltese accumulates a detailed social map over the years: the neighbor's terrier he adores, the big shepherd he fears, the play style that delights him and the one that sends him behind your legs. If he changes homes, that map protects him — a new owner who knows it avoids the avoidable bad day. Write it down as part of his ordinary records from the start, including how he was introduced to any dog he now lives with. KinsLe Transferrable Profiles carry that social history with the dog, so a rehomed Maltese arrives with his friends, fears, and safe introduction pattern already explained.