Oh… Sorry. Thought it was a “wanting to know how to properly work with him” kind of question, not how to actually contact a spirit.
Well, I’m quite terrible at explaining things and since there are wonderful and informative threads all over this forum, here’s another one.
As Manosman said in that thread, there’s no need for a circle. Before you summon him, I suggest you write down your request. Take a day for it. Why rush?
When you feel that he’s there in your space, you could either voice your request or leave it on the altar with his offering(s).
But before you begin with all of this, I suggest you start from the basics so you won’t blindly jump into it. Meditate at least 10min a day. Do energy work (chakras and your psychic development) and learn warding, shielding, banishing…
During your daily meditations and other things, you can meditate with his sigil, so you can build an energetic rapport before you contact him and get used with his energy.