While Liverpool is a relatively small city, there are several transportation options available such as buses, trains, and taxis. Opt for walking around to enjoy the sights or purchase a day pass if planning to use public transport frequently. Approximating £5-7 for the day's transportation is advised.
If you have more time, consider visiting the World museum, Liverpool Tate, or the Merseyside Maritime museum. Add an hour for each. Or, if you're short on time, you can explore only a part of the dock and concentrate on your favorite activities. Liverpool is a friendly city, so don't be afraid to ask locals for advice on hidden gems and specialty shops.