Supercoin giveaways, forum signature campaign, try to get in on more exchanges, set bounties on irc tip bot and new articles about supercoin, start giving out a few supers each for a retweet and favourite, start regularly updating bitcointalk thread with news for phase 2. Work on multipool that pays in super.
Also you should probably change the logo, since the current one looks like it's been made by an edgy 14 year old.