Doing some research on the stamps you have and ensure your description is very accurate for the "lots".
ebay has new rules etc. be sure to read them.. their rules try and prevent any scam activity but, it still happens. Take the best scans of your "lots" so folks can see them better.Front and back. Just try one lot and let folks bid on it, start it at .99 cents. Remember stamps are about fun and very few about profit. Sharing and trading stamps is also fun like you mentioned. Gar