Managers have the ability to assign learning to employees who report to them through the Learner's profile
One of the easiest ways to achieve this, would be to do the following:
Jump into the "My Team" tab to quickly visualize the user you are searching for.
Click on the user's name to go to their profile,
Next click the Three Elipsis in the right hand corners
click "Assign Learning".
You can then search for the course you wish to assign from the resulting pop-up.