These simple hoop earrings are suitable for complete beginners.
If you choose beads with big enough hole, no tools are required. However, if you want to expand the range of beads that you can put onto the hoop, then chain nose or flat nose pliers are needed. 
 
Materials needed:
Two ear hoops
Choice of beads and or charms
 
Without tools/beads with larger holes:
Simply open the hoop, thread the beads on and close. It really is that simple! Just take extra care when put the earrings on and taking them off that you don't loose any of the beads.
 
With tools/beads with smaller holes:
Step 1:
Using the pliers carefully straighten out the bend in the hoop.
 
Step 2:
Add the beads.
 
Step 3:
Use the pliers to gently bend the wire back to how it was.
 
Repeat for the second earring, your earrings are now complete!