katevoegle.jpg The last time Bay Village singer-songwriter Kate Voegele played South by Southwest, she wasn’t old enough to drink. But this time, as she told her audience at Thursday night’s Thirsty Nickel showcase, the 21-year-old was taking in everything SXSW has to offer. We can only presume she was talking about the music and not all of the gutter-dwelling drinking that goes on here. Voegele is still a sweet, young-seeming girl, after all, the type who says “freakin’” and “you guys are awesome!” onstage. She talks like one of the characters on One Tree Hill, the tween drama in which she plays a singer-songwriter. In other words, she talks like her fans. …