Robbie:
Robbie is always blissed out when you kiss him, he'll get this soft look on his face like he can't believe that he gets to kiss you.
Tori:
Tori kisses you softly and when she pulls away she stays close, resting your foreheads together or brushing your noses together.
Beck:
Beck likes privacy when you kiss. He likes to have all of your attention when his lips on yours, without worrying about other people watching them.
Jade:
Jade is not shy at all when she wants to kiss you. She'll kiss you hard, slow, sloppy, sweet, in front of anyone, anywhere
Cat:
Cat would be shy about kissing you at first but eventually she'd never want to stop and she'll just kiss you whenever she feels like she needs a taste
Andre:
Sort of like Beck, Andre would like some privacy when you guys kiss, but he also wouldn't object to some public kissing just to show everyone that's you're his and he's yours.