Bnd girl maybe?

Soooo like a few days ago i went to watch Brand New Day and one of my female friend was there aswell, she was with her sister and I found her to be cute so today I told my friend that I think her sister is cute , well apparantly she went and told her sister about how i was at the movies too and I think she's cute , that girl is apparantly down to talk to me and I've texted her saying "Hey...we saw eachother at the movies remember" , well idk what to do now.