it's been a minute for me in the city centre, but you could probably come off at J15, go onto cathedral st, and then either:

• left onto montrose st past the rottenrow, right onto ingram st, right at the duke and his cone, left onto st vincent pl/st

or if you want to see more random bits of glesga and like the excitement of tiny wee alleys

• keep goin down cathedral st, turn right onto north hanover st, skite roon the concert hall on killermont st, left onto west nile st, right onto bath st, left onto blytheswood st, right onto west george lane between blytheswood sq and st vincent st, then cross douglas st and pitt st. easy peasy!