Stay left on the exit ramp and this will put you on Cambridge Street.
At the 4th traffic light, turn left onto Harvard.
Note: At the 2nd traffic light Harvard turns right. Ignore this.
You will be on Harvard go about 200 yards.
Turn left onto Brighton Avenue
Once on Brighton you will cross the light rail tracks and it will become Commonwealth Avenue.
Follow Commonwealth for about 1 1/4 miles and you will come to Kenmore Square
Look for a huge CITGO sign on your left.
Turn right onto Brookline
Note: Beacon Street makes a very hard right at this same spot. Make sure you take Brookline Street. (See map below)
Cross under I-90
Turn left onto Lansdowne Street (Cask & Flagon Bar on corner)
Bill's Bar is all the way down on your left.

Get me outta here...

Continue ahead on Lansdowne and turn right onto Ipswich Street for 1/2 block
Turn left to stay on Ipswich Street
Turn left onto Boylston Street
Follow signs to Rte-2/Commonwealth Avenue
Turn left onto Commonwealth for about 1 1/4 miles (light rail will be on your left)
As light rail splits left, you stay right onto Brighton Avenue
Turn right onto Harvard
Turn right onto Cambridge and follow signs to I-90/Mass Pike
You can go East or West on the Mass Pike from here.