Connect to a Wi-Fi network
Click the Wi-Fi icon in the menu bar, then choose a network from the menu. Before you can join the network, you might be asked to enter the network's password or agree to terms and conditions.
If you don't see the Wi-Fi icon in the menu bar, choose Apple menu > System Preferences, then click Network. Select Wi-Fi in the sidebar, then select ”Show Wi-Fi status in menu bar.”
To connect to a Wi-Fi network that you know is hidden, choose Other Networks (or Join Other Network) from the Wi-Fi menu , then choose Other. Enter the requested network name, security, and password information.
Lean what to do if your Mac doesn't connect to the internet after joining the Wi-Fi network.
Connect using Personal Hotspot
With most carrier plans, you can share the cellular data connection of your iPhone or iPad (Wi-Fi + Cellular) with your Mac. Learn how to set up Personal Hotspot.