Seeking advice from costume designers / makeup artistes

Hi guys, just finished writing a play. One that requires actors to play the part of canines...as in walking on all fours, slurping from dog bowls etc etc...In setting / determining the production notes, I'm pondering how best to portray said canines? Minimal? As in, just a touch of makeup to the face, as a mere suggestion, or go the whole hog, or rather, the whole dog? I'm open to the thoughts of our many talented costume designers, and makeup artistes. cheers Johnny Grim A lad in sane productions