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You don't have to click anywhere, any recent reputation received is usually displayed right there on that page. Judging by what's there in that screenshot, you haven't received any reputation as of yet.
Just adding on to what Siggy said.
This is what you'll see when you get rep https://i12.photobucket.com/albums/a247/Arcanine_PC/Repstuff.png
(only difference is you won't be able to see who gave it) Like Siggy said, it's just going to be right on the main page. And not everyone leaves a comment, so if you get one with a blank space don't be worried or anything.