See the following examples. The first uses the quotes on the keyboard, the second uses the Unicode entities 8220 and 8221 for correct english quoting and the third uses 8222 and 8220 for the german version:
"this is dumb quoted"
“english should be quoted like this”
„deutsche Anführungszeichen“
The thing about these kind of details is, that one don't cares about, if he don't know it, but as soon as he knows, it starts to bug him. Do this right and you are on the save site.
PS: jep, I know, my english isn't perfect and arguing about such details might seem silly... but I'm working on this :)