The Mudi is a typical herding dog which can be somewhat reserved with strangers. This is not a fault. Being reserved does not mean fearful, shy or panicking dogs are acceptable. Mudis require extensive socialization with humans and dogs in their first year of life to acquire a stable and self confident temperament. Mudis can be strongly protective at home, but in a public area aggressiveness cannot be tolerated.
The wedge shape should be visible not only from above, but from the side as well. The narrow, long (‘beak-like’), or thick, strong, rectangular shaped muzzle is not preferred.
The pigmentation of the lips and eye rims is dark, almost black in the white and fawn (yellow) Mudis, as well.
In general, the dentition of the Mudi does not show deviation from the scissors bite, and missing teeth are also not common. Preservation of this positive feature is very important. The most common fault is the lack of one or more P1 teeth. Although the standard tolerates one missing P1, favoring the full dentition is very desirable. The shortening of the muzzle region accelerates the missing teeth phenomenon, therefore the preference for a shorter head, especially for a shorter facial region cannot be the goal of breeding.