Maybe this post will not give you something but it will be good if you give response :

i am good with convo with strangers and guyz,

THIS DAY , i was at uni cafe with my guy friend and there was no place to sit , so i asked two girls to sit along with them , (they said 'yes' but body language was not positive)

my friend went for giving order , i was sitting there with, THIS WAS THE CHAT:

Me: Which depart are you from ? they: electrical engn. (body language not good) Me: Do you have interest in physics ?

they: (one of the girls just smiled in mocking way) i was smiling too) they Left Me: (smiling in positive way, like it doesn't affect me)

they should have said 'no' if they were uncomfortable , i just started bcz "Give it a try, Better than to not "