First of all I am a girl. a guy I work with often I was not sure he was straight or not(sometimes he didn't look straight ). once I touched him playfully and he told me to not touch him. the other day he smiled to me in a way that he doesn't with the other female colleagues. it feels different the way he interacts with me. it feels like flirting now, especially the way he smiled at me the other day, we have complicity another day he asked me to do something for him in front of other guys and to do it with "love".sort of hinted he knows i am attracted to him and i like working with him most of the time (we joke too) i think he doesn't want to show and it gives me impression that when i am not looking he looks at me but doesn't make a move. i think he is single. same day hebefore leaving work, he was there waiting until i was free for a second and said goodbye. the other times he just left work without stopping by. is he flirting with me?