She wants me to be more agressive. What does that mean?

im getting really close with this girl and we're hanging out tomorrow night. she says that she wants me to be more agressive and make the moves. we were just texing eachother and i said i cant wait to see your cute smile and she said and kiss me right. i said of course but only if you want me to. her response was yes! honey i want you to make the moves. how do i do that? this is so important to me because she happens to be my ex gf from a year ago and i think a reason why she broke up with me is because im not agressive enough. i cant help it though, im a nice guy so i just get worried if i did something she might get mad and leave.