Why can't I enlarge pictures on here?

[JeremyCorbynsBeard]

Whenever anyone posts a pic, I click on it, but it doesn't get much bigger. Then I can't enlarge it either.

Am I doing something wrong?

Try opening it in a new tab? Depends on the device you're using.

How do I open it in a new tab? I've tried it on phone, tablet and laptop and never seem to be able to enlarge them.