I have a couple I might sell but I don't know how it works. I have a paypal account so I could do that but how do you give the credits to somebody else.

If you click on my name you will see an option to give credits to me.

From the Help Center above.

Can I sell my credits to other members?

Yes.  While we do not "buy back" credits ourselves, you are free to sell your extra credits to other members or give them away.  You may set the price and payment method.  Please note that there is a limit of 50 credits/month for credit transfers between members (this limit does NOT apply to Friends of PBS or other donations, credit transfers to or from Games Moderators, or credits given using the Give Refund button). 

To offer your credits for sale:

• Start a Discussion Forum topic in the Book Bazaar Discussion Forum, explaining that you have more credits than you can use and would like to put them back in the system.
• Ask interested members to send you a Personal Message asking for more details.

To obtain payment:

• You need to work out the payment method between you and the other member(s).

After you have been paid by the purchasers for the credits:

• You can transfer the credits using Friends Crediting Feature.
  • Read instructions on how to use this feature here.

thanks

I don't have paypal and I'm not really interested in Amazon gift cards.

I usually sell credits asking for money orders as payment. I've connected a few times with another member or two and we trust each other enough to use checks as payment. Once I receive the payment I immediately transfer the credits to the other member's account. So far, it's worked out very well.