richie

-at the arcade
-he challenged you
-and you kicked his ass

bill

-at school
-he ran into you
-awkward stuttering while apologizing

eddie

-at the drugstore
-picking up things for your brother
-you both went to grab the same things

stan

-at the quarry
-you were sitting there crying
-he sat and comforted you

beverly

-during the rock war
-you heard shouts and went to investigate
-she caught you when you where knocked over