+1 is the action of approval (past tense: +1'd), however it's not very useful, as Humble Bundle re-uses their root URL for the page, so I had already done this.

+1 is the action of approval (past tense: +1'd), however it's not very useful, as Humble Bundle re-uses their root URL for the page, so I had already done this. When write on Google+, the submit button is labelled "Share".