Ginny Weasley
They don't kiss in Harry Potter and the Half-Blood Prince. They kiss in Harry Potter and the Deathly Hallows after Ron says he wants to get the house elves out of the kitchens during the fight at Hogwarts so the elves don't all die.
No he kisses Ginny Weasley.
In the 6th Harry Potter book, Harry Potter and the Half-Blood Prince.
No-one.
Harry+Ginny Ron+Lavenda Dean+ginny
Yes, they kissed in Harry Potter and the Half-Blood Prince.
No, he kissed her in Order of the Phoenix. Harry and Ginny kissed in Half-Blood Prince.
Ginny and Deans kiss is 268. Ron and Lavanders kiss is 281. Harry and Ginnys first kiss is 499.
Yes in Harry potter and the half blood prince.
Yes
I believe these clips can be found on YouTube.
In the sixth year (for Harry) at hogwarts after Gryffindor wins the Quiddich match. In that Harry wasn't playing due to Detentions. So Ginny played the role of Seeker in the match. Also when harry turns seventeen.