Your Dexterity, Intelligence, and Charisma scores increase by 1, but your Constitution score decreases by 2 and your Strength score decreases by 1.

Your base walking speed is 25 feet.

You can hold only one weapon or shield at a time in your mouth, as you are quadrupedal. At level 3 you develop the ability to walk on your hind legs and hold light weapons or a shield in each paw. At level 5 your body acclimates to bipedal living and you can hold any non-heavy weapon or shield.

Most Pugs are neutral good. As a rule, they are good-hearted and sweet, hate to see others in pain, and try to be good. They are typically obedient to those they see as stronger, but will occasionally vie for supremacy when they see the opportunity. The occasional pug will lean to the chaotic side, openly defying commands. 

While normal pugs live only into their second decade, this special variety ages in human years instead of dog years, reaching maturity at around 20 and living up to around 80 years.

Pugs weigh around 20-50 pounds full-grown, depending on their body type. On all fours they typically max out at a couple of feet tall, on their hind legs they can reach around 3 feet tall.

You can speak, read, and write Common, Pug Latin, and can bark like a normal Pug.

Pugs gave up their physical prowess in exchange for remarkable abilities either socially or intellectually. 

Hyper-intelligence Specialization

Some pugs evolved to reach the pinnacle of intelligence, they are unmatched thinkers. Your Intelligence score increases by 1 and your Intelligence score maximum increases by 2.

At level 3, your heightened intelligence allows you to establish telepathic communication with up to 5 willing creatures as long as they can understand at least one language.

At level 7, you use your magic so efficiently that once per long rest you can regain one third level spell slot.

Social Specialization 

Your Charisma score increases by 1 and your Charisma score maximum increases by 2.

At level 3, once per short rest you can cast Charm Person as a first level spell without the target realizing that they were charmed.

At level 7, once per long rest you can cast Suggestion as a second level spell without expending a spell slot.

Pugs can only talk if they take a moment to prepare themselves. You can spend a bonus action to prepare to speak either a small phrase or a spell verbal component.