So how do you end a second date?
Well, it depends on if you want a third or not.
If the date went well and you would like to see them again, then you should share a kiss goodnight. If you ended the first date with a nice kiss, and greeted the second date with a nice kiss, then perhaps this kiss should linger and last longer. The purpose is twofold: to let your date know that you are definitely interested and to establish physical chemistry. But let it end there. This is not the time to extend an invitation to go home with you or to accept such an invitation.
If you don’t want another date then you should make sure to bid adieu respectfully and with dignity. Thank your date for a nice time and express your appreciation if the other person paid. Or… if you don’t want another date but there’s sexual chemistry then go ahead and have some “safe” fun! Safe both in a physical as well as emotional way: make sure to use protection but also make sure your date knows this is just a hook-up so that feelings are protected as well.