Bitte: Means

Bitte: Means "please"
Das ist mir Wurst: A colloquial phrase that means "this is sausage to me" and is used when someone doesn't care about something
Quatsch: A slang word that means "utter rubbish" or "absolute nonsense" and is used when someone is talking trash
Spinnen: A phrase that means someone is talking crazy, especially when someone is overcharging you
Entschuldige bitte: An informal phrase that means "excuse me, please"
Es tut mir Leid: Means "I'm sorry"
Gern geschehen: An informal phrase that means "you're welcome"
Ich habe eine Frage: Means "I have a question"
Guten Morgen: Means "good morning" and is typically used until around noon
Guten Tag: Means "good day"
Hallo: Means "hello"
Wie geht es Ihnen? Means "how are you?"
Auf Wiedersehen: Means "goodbye"