Manual upvoting is probably the best way to do things
100% 🙂
With the manual, all this on Hive is raised to a higher level, a closer relationship between the author and the curator, the author knows that the one who voted for him really follows him. But again, it's a matter of time, and have the same for Hive.
It's better to have a trail than to have HP sitting on your account and doing nothing?