I'm a god at photoshop! Nah.. I'm good but also too busy though ;(
But what I can do is give you a few pointers and a quick walktrough.
1. Always work in layers when manipulating (makes it esier to redo stuff later)
2. Make a copy of original image as a new layer.
3. Add mic as a separate layer on top and either:
a) Make a path around it and erase everything around it.
b) Mask everything out around it.
You can hide the mic layer for now..
4. Go back to the copy of your background image and use clone stamp to clone over the can with the wall behind it.
Make it look as natural as you can.
You should now have a empty hand.
5. Go back to mic layer, place it over the hand and then either:
a) Lower the opacity of the layer so you can see through, revealing the hand underneath.
Then erase the mic where you can see his hand. Set back opacity to 100%.
b) Make mask layer and mask out the mic where hand should be.
Done!
EDIT: Um, by the way. How about taking a new group photo?
