HHHHHEEEELLLLLPPPP!!!!!!?

shes young and has most likely been taught petting and physical display isnt an okay thing at her age ...you probably wont "change" the whole... in public or touching thing...however perhaps if ya explain you like her and before she leaves would she think about atleast a good bye kiss...give her time and don push it! respecting your partners rights is all apart of a relationship, friendship or otherwise. Enjoy your time with her and dont worry about "making" her want to. Give her space and let her want to do it...if she doesnt respect her for her choices (if ya really care for her) ask her if she would consider it and let it go and be there with her no pressure (its hard for a guy your age i know ; ) but restraint and respect is characture building) youre young, enjoy your time with her while you can...perhaps not pushing will let her decide a kiss is worth it in the end good luck