After the last time you were in Allston, when you thought you were going to a party but ended up at a fraternity rager, you swore you’d never go back. But Allston’s matured, so it’s time to give it another chance. The last year has brought some trendy spots to the ’hood, including hookah bar and sexy singles hot spot the Nile (70 Brighton Avenue, Allston, 617.418.4173) and the deliciously modern Privus Lounge (165 Brighton Ave, Allston, 617.787.7483). Streetwear from Re-Up (One Brighton Ave, Allston, 617.783.7387), skater duds from L.A.B. (113 Brighton Ave, Allston, 617.395.4330), and designer urban threads at A.W.O.L. (190 Harvard Ave, Allston, 617.787.0600) will help you fit in with the young and trendy crowd. And Rock City is living up to its name: venues like Paradise Lounge, Great Scott, and Harpers Ferry are attracting bigger and more diverse names, from Mandy Moore to the Kooks. Careful: you might never leave.