Bars is usually a common place for those who just want to have some booze alone. Or if you can, you could travel in a completely different place to just relax and discover new things for yourself.
Park,movie
movies.
park.
mall.
amusement park.
bars.
you can go anywhere and be alone actually. still be with other people and do your OWN thing at the same time
Go To The Coutry Side
Park
.
.
.
Bookstores or coffeeshops