Johnny Manziel -- Photo from Thursday Night Turn Up

More photo evidence from Johnny Manziel's party weekend -- this time, a pic of the Cleveland Browns QB at RIO nightclub in Austin, TX on Thursday night.

Same hat. Same mustache. Same bracelets as he was wearing in the champagne video from the next night.

Sources in the club tell us Johnny was behaving himself -- not doing anything crazy.

We spoke with a staff member at the RIO who confirmed Manziel was at the bar on Thursday night.