Girls live in romance and not in logic.Go and watch romantics of SRK. Learn something about ‘romantic fantasies’ of girls.Learn some couplets and see the change. Learn some subtle language.
Girls like hints and not direct ‘I love you’ and ‘be my some one’. When you pass hints, they give further signals.After some time, you can say ‘I love you’ and ‘will you be my sweetie pie ?’
Direct road to girls heart is always indirect.
PS : Do not get disheartened with immediate reactions of girls. They are moody. They think back, ruminate, rethink the whole issue. Research more. Change their conclusions.Just be natural and don’t worry much about their instant reactions.