How much do you need to add 2% to the intimacy of QQ friends?

Intimacy: it doesn't matter: stranger title: stranger experience bonus: 0 intimacy: 0-499 relationship: friend title: acquaintance experience bonus: 0% intimacy: 500-999 relationship: friend title: friend experience bonus: 1% intimacy:1000-/kloc-0. 0-2999 relationship: friend title: confidant experience bonus: 3% intimacy: 3000-3999 relationship: friend title: confidant experience bonus: 4% intimacy: 4000-4999 relationship: friend title: best friend experience bonus: 5%. I hope you have a good game ~ I hope to adopt it ~