This typically happens when they sense danger or are unsure of the situation.
As a result, you really don’t want to see this “smile”.
Canines may also squint their eyes and give you a submissive smile showing their teeth.
This is meant to let you know that he is acting submissively and is not a threat.
” While less common than an aggressive smile, this smile is still much less common than a happy smile. Most of your golden retriever’s smiles, about 80 percent, are likely to be happy smiles, and the remaining 20 percent will be evenly split between the other two smiles.

