"Squirrel"!!!! That was the first word Jerry learned after we moved from Germany to the US, into a house and yard with many of the aforementioned. Then came "cookie" (after being spoilt by OH's mum) and, of course, "walk", or "are you ready??!!" (before we do our evening howling routine).
Then a couple of sentences in German (yes, Jerry is bi-lingual

), like "wo ist das Herrchen?" (where is OH?) or "schau mal wer da ist" (look who's there), "willst Du mal raus?" (you want to go outside?). Most important word is, of course, "Essen" (Food

)
The rest is the usual training words, most of which he knows in both languages

. (they are probably not his favorite, though

)