Harry
Romantic. Harry belives every kiss should be special, so every times he kisses you he makes sure you'll remember it.
Hermione
Sweet and flirty. Hermione is a very "lovey dovey" person, surprisingly. Every kiss is light and flirty with you two.
Ron
Sloppy but loving. Ron is a laid back man. While it seems like he may be far away, he loves it when you kiss. He finds your blushing adorable.
Draco
All over. In public, you may get a few sweet kisse, but alone, Draco will kiss you everywhere. Cheeks, lips, neck, you name it. He loves it.
Fred
Show off-ish. Fred loves showing that you're his and only his, so whenever he gets the chance to he will kiss you passionately in front of people.
George
Minimal but passionate. George doesn't mind kissing you around people, but will keep it to a minimum. He'll cup your face and kiss you passionately for a moment.