Dude.
Google "don't want to kiss and stuff" and you'll have a "little mermaid voice music playing in your head" moment when the internet explains. Use Google translate! I'm sure it'll get you to some tumblr eventually.
Theeere they are, Hirano finally found his heartbeats!!! <3
I love the way feelings are portrayed in this manga so much, sometimes it really just is the most mundane little things that make you fall for someone.