Final answer:
Theodore Roosevelt was an outgoing and decisive president who actively steered the United States into world politics and had a bold approach to domestic and foreign policy. His activism and commitment to progressive reforms transformed the presidency and expanded federal government.
Step-by-step explanation:
Theodore Roosevelt can be described as outgoing and decisive during his presidency. He actively steered the United States into world politics and had a bold and assertive approach to both domestic and foreign policy. One of his most famous quotes, 'Speak softly and carry a big stick,' reflects his willingness to assert American power when necessary. Roosevelt's activism and commitment to progressive reforms set the stage for future presidents and expanded the role of the federal government.