Hi and Welcome to YT.
patience, repetition and treats! There are some short little training videos on youtube that are good. they helped me. I also went to a puppy class.
No yelling. I say a sturn "NO" or make the sound "eh-eh-eh" (hard to spell out)
Good luck. they are smart and catch on quick.

Donna
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I'm Donna. DH is Mike, son is Grant &

is Gunnar
WE all

Gunnar Lee

. 7.9Lbs of lovable Terror