Conditional completion actions in Pardot allow for a more targeted approach in executing actions based on specific criteria met by prospects. A key behavior of these actions is that both standard (apply to all prospects) and conditional (apply only if certain conditions are met) completion actions can coexist on the same marketing asset. This dual functionality enhances the asset's ability to engage with different segments of the audience differently, based on their interactions or demographic information, thus allowing for more personalized and effective marketing tactics.