I assume you mean in the sense of browsing in a shop when you're approached by a shop assistant:
Ich shaue/gucke nur
or
Ich schaue mich nur um
What do you look like? translates as Wie schaust Du aus?
Nur ein scherz means "just kidding" in German.
"Deutscher Gauner" would be the term you are looking for.
"Glück" is the word you are looking for.
"neu" is the term you are looking for.
"Bedienungsanleitung" is the word you are looking for.
Mallorey is just Mallorey in German.
You can just say 'gut'.
Allie is just Allie in German; there is no German translation.
Brandie is just Brandie in German; there is no translation.
A German cat would say "miau!" It sounds just the same, too.
Rochell is just Rochell in German; it doesn't change.
Jeffrey is just Jeffrey in German; it doesn't change.
Erin in German is just Erin; there is no translation.