How to be more seductive.

Okay I feel like I need advice, my boyfriend claims that I'm not to good at being seductive or being sexy. I feel like I'm doing decent job tho but now I just don't know what I'm doing wrong. I do everything he says that he would like/want & sometimes without him asking me. Mind you I'm still a virgin & he's not so he knows what he's into. so I'm not to much experienced with things, or been asked of this "being seductive" with past relationships, things naturally happen . It's also a bit hard cuz we are in a long distance relationship at the moment so I feel like doing things over the phone is a bit hard than to have him here with me to show him & touch in person . Can someone give me tips & suggestions on to be more I guess exciting & seductive/sexy .