Wiktionary
puppyishly
adv. In a '''puppyish''' manner.
Usage examples of "puppyishly".
The girl dancing topless for my benefit, and for that of the gingery, hermaphroditic figure seated two stools to my right, was short and shy and puppyishly built.
As he barked ecstatically, snapping at the falling snow and rolling in it puppyishly, Major Laird revved the jeep for the dash up the rise to the garage I now distinguished in the gloom.
He went down on one knee to hug and thump her and she wiggled puppyishly and tried to lick his face.
And he, for all his gray years and sage experience, behaved quite as puppyishly and even a little more foolishly.