Love an extrovert

Take frequent notice of and an active interest in what they are doing.
For example, follow them to the stadium to watch football matches, even if you are not a football fan.

Be on and at their side.
Support them to achieve their personal goals. For example, encourage them to learn a new skill that can boost their career.

Be frequently demonstrative, physically and verbally of your love.
Spend time with them, and remind them of how much you love them.