Here are more details to help you avoid asking the same question for all the other commands:
Press Ctrl + Shift + A, and search for the command you’re looking for (“declaration”) for example. This finds the command “Declaration – Goto by Reference action – Ctrl + B“.
So you just need to put your cursor on the method you want to go to, and press Ctrl + B? You can also Ctrl + Click to achieve the same goal.
The most useful keyboard shortcuts are described in the Help – Tip of the day dialog box. Read them all.