Hi I've been approaching girls for a few months now mainly on weekends since I have a very demanding job. Well after first approaching, that is usually shaking their hand and asking their name and maybe a few other general questions. I usually get the " I have a boyfriend" or I just freeze and leave the interaction. I'm not sure how to continue from there, even though friends have told me I just leave the interaction, even if it goes well, the thing is I never really know how am I doing or where to go next. Any advice?