If you're not yet that confident in picking up alone, go with a buddy who is good in doing the pick up. Ask for some advice and tips. If you feel somewhat confident already, you can now go pick up alone.
One other advantage of being someplace new, I think, is that nobody there knows you and so you start fresh. Start by chatting up strangers, engaging in small talk while in line at the grocer, complimenting girls, anything to make you more confident of interacting with people. And like what Miko said, you have the perfect excuse to go sarging alone