Search Results: what does keep in touch mean

I will cut it short.
I always walked passed this boy, he never use to smile at me, one day he saw me smiling at him, so did all his friends, after that his friends saw me, and hit him to look in my direction, he smiled at me and so did they, after that day he was always smiling at me, when I didn't look at him, he would stare at me smiling, and when I looked at him smiling, he wouldn't look but kept smiling, his friends would smile when they saw me, and look back at him or hit him, point him in my direction, once I saw him staring at me, he saw me, after he looked away and bit his lip, once he saw that I like when boys touch up their hair, the next day he saw me, he was staring at me, touching up his hair smiling, he talks to me sometimes, asking questions about me and stuff, his never been rude to me always nice. So what does this mean?