Glasgow is of a very manageable size, and if you don’t mind walking, it’s a good idea to see the city on your own two legs. Many of the most popular sights in the city are very close together, and it makes sense to move around on foot. If, however, you need transport, you could hire a car; there are a good number of car rental agencies in town, or use public transport. Glasgow has a good Underground, with fast and frequent trains; a suburban railway system, and buses, including a hop-on, hop-off tourist service tailored for sightseeing.  There are taxis throughout the city - you can hail one on the street, or phone for one from your hotel.