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The lunar surface checklist on the left glove (photograph has been rotated 90 degrees for ease of reading). It reads

 

LMP (CDR)
Envir Fam (TV Deploy) Deploy SWC EVA & Envir Eval-(Bulk S)    Lean/Reach/Walk    Best Pace/Start/Stop    Fast Pace/Traction/Dust    Pene-Photo Footprint    Scuff/Cohesion/Adhesion    Gen EVA Eval    Light-Up/Down/Cross Sun    Color/Contrast/Texture    Reflect/Rocks/Craters    Gen Eval/Phenomena    Panorama LM Inspect - Quad I    Photo Bulk Sam Area    Unstow ALSCC	Panorama Off-load EASEP/Deploy PSE Close-Up Photos Documented Sample Col:    SRC to Strut    Unstow SRC    Core Tube (Hook Bag)    Unstow Scoop & Tongs    Describe & Col Sam-        Feature/Assoc        Age/Amount Close-Up Photos/Cassette Collect Envir/Gas Sam    Bulk Sam/Core Tube Clean EMU/Ingress (Photo)

Aldrin was Apollo 11's lunar module pilot (LMP); Armstrong was the commander (CDR). Although Armstrong had his own checklist, there were a number of tasks for the two astronauts to perform at the same time.

If you've ever watched the full television footage of the Apollo 11 EVA, there are a few minutes when Aldrin seems to run https://youtu.be/iR3oXFFISI0?t=4166 around on the moon like a little kid, but he was actually going through the checklist, evaluating various paces at which an astronaut might walk in the 1/6 lunar gravity.

Note the magnifying glass at top, provided to help the visitor read the checklist.