Here are several hands I've previously sketched to provide you a general idea. It's best to take a glimpse of your hand to get ideas for poses. Hand poses vary on the type of character, emotion, and characteristics that persuade your character(s). It also takes time to learn to draw hands as they are very hard to recreate in different views. Get a book all on hand pose references, and practice two a day. This should saddle you with general ideas for use later on.