Girl doesn't smile back?

Dipsy
Today i sat somewhere and a girl came walking past me. From the moment we locked eyes (she didn't see me before) i smiled (a grin) but she didn't smile back, i think she looked down. A few seconds later, she stepped on a tile and it made a loud noise, so i looked at her and she looked behind her at me.

Im a bit offended that she didn't smile back or anything (we didn't say anything), she was a few years older than me (at most 25 yrs). Why didn't she smile back? Maybe my smile wasn't noticable? Or did she think i was attractive?
Updates
+1 y
Anyone? :(
Updates
+1 y
More opinions?
Girl doesn't smile back?
7 Opinion