Barking at you
When your pup barks at you, completely ignore them. Shouting at them to stop will reinforce the behaviour as it will give them the attention they are seeking. Don’t don’t look at them or acknowledge the barking, just carry on with what you are doing. The moment that there is a pause in the barking, say “Good” and give them attention in a calm manner. Repeat as needed. They will soon learn that barking does not get them the attention they desire, being calm does.