The kiss you give her after she says yes is going to be one of the most memorable kisses you ever share with her. It will be right up there with your wedding kiss and your first kiss. Make it count.
You love this women and she just said yes to spending the rest of your lives together. Make it passionate and show your love. Like everything, what that means to you may be different than the next couple but, kiss your bride to be. Let that kiss show how happy you are and how great you feel that she said yes. You likely don’t have to put a lot of thought into “planning” it, it can be spontaneous but, keep in mind that it is important. She just agreed to spend forever with you and only you, kiss her and show your love.