The very first thing he did upon seeing everyone in person was pretend to be an alien, and even though that was just a silly little joke, it absolutely falls in with Cavanagh’s description of him being a con man.
But now we have a total wild card on our hands with Earth-19’s Harrison Wells.
And now we get to study his actions for use in speculating his “secret” plans.
Indeed, everything surrounding Tom Cavanagh’s Reverse-Flash from Season 1 made the season explosive, and while the more subdued version in Season 2 didn’t have the same kind of twists and turns, it was still fun to watch him awkwardly socialize his way through the season.