What would you do if you were 11 and your boyfriend wanted to kiss you?

Chat to him lots, touch his arm when you're talking, and lean towards him. Don't actually go for a full on kiss, but get just close enough so that he could kiss you if he wanted, or alternatively mock-kiss him on the cheek or air kiss him. If he doesn't respond, don't lean away too quickly, laugh and sit back or stand back slowly. Talk to him like normal, don't suddenly stop talking to him.