Amsterdam is compact enough that many visitors can rely mostly on walking and trams.
Walk the historic center
Many central sights are close enough to combine on foot.
Use trams for longer jumps
Trams make neighborhoods outside the canal core easy to reach.
Treat bike lanes as traffic lanes
Cycling is normal transport, not a casual pedestrian extension.
Rent a bike only if it improves your trip
You do not need a bicycle to enjoy Amsterdam.