I like how Yamada was paying attention to him fiddling with something in his pocket all day and used the race as an excuse to coax it out oh him. So sweet it's honey straight from the beehive.
Wishful thinking, but Mr. Author can you make her a little older please if, as I suspect, this goes down the romance route, or if she is older make her look her age.
There's a limit to how little confidence you can have: she's literally seconds away from jumping on your junk, but no... you don't think she's into you. Dumbass.