I would recommend that you buy a copy of a book called "The Complete Patter" written by Michael Munro and John Byrne, published by Birlinn Ltd. It will cost £4.49 new or a few pence for a used copy from Amazon.
This book is the ultimate guide to the Glaswegian dialect, and the best investment you'll ever make, to help you learn this (almost) impenetrable language.
Not only is it a fabulously funny read, (even to native Glaswegians) it will tell you everything you need to know about speaking like a true Weegie. Treat it as you would any phrase book or dictionary
A lot of Glaswegians speak English too! - in fact, many of us consider ourselves to be truly bi-lingual - switching effortlessly between English (as taught in schools), and Glaswegian as the situation requires.
Those you meet may start a conversation in Glaswegian, but will revert to English, (although it may not sound like English!) when it's apparent that you "dinny unnerstaun" (don't understand). Some of those who can speak Glaswegian ONLY, will be NEDS (non-educated delinquents).
Neds (called "chavs" in the rest of the UK), should be avoided at all costs. Thankfully, they are easily identified by their uniform of cheap nylon sports clothing - although, strangely, they never engage in sports.
Enjoy your time in our fair city... and just to get you started ....here's a question you might be asked when you arrive in Glasgow.
"Wherrd'yaecumfae?" or Wherryefae?" (Where are you from?)
Your reply might be
"AahmfaeOz" - (Actually, I'm Australian)