Some help with sallos

So I really would like to make a pact with Duke Sallos and I do not have much to offer . I have started his sigil but I also do not know what I could be doing wrong. Any advice would be greatly appreciated!

This forum is full of information on working with spirits. Please use the search function and type in “evocation guide.” Click on the fifth option. It will give you a method to follow.

Thank you