I dont know how well this would work for guys, but what i found use to give me confidence and a certain energy boost was wearing super sexy underwear.... obviously under my clothes. It kind of just adjusted my mindeset to a naughty mischievious place, helped me relax a bit more and conversations would just flow easier.
Why not try going out wearing a thong under your clothes and see if that does anything for you.
Why not try going out wearing a thong under your clothes and see if that does anything for you.