Regarding the Steemgigs tag you will have to follow the rules
Steemgigs is basically freelance work
I will drop you the link for both of the tags
However you can use the #Untalented and #steem-untalented at any of your posts it does not need to be part of the contest necessarily but it has to be a good/decent post
Mistakes are allowed anyway, no one will judge you for them especially @surpassinggoogle

Now it does not mean that using the #Untalented means that you will receive upvotes continuously
Basically untalented is more like a family on Steemit.com
We all have the responsibility of Upvoting each other's work if we like it
You can check the #Untalented contests entries and you will see that all of them have been upvoted by @surpassinggoogle And you can learn about it more by reading a few entries

Using the tags you are actually calling @surpassinggoogle and he will check your post
Because he is always checking who is posting under the #Untalented