Several ideas
1. You need to look at how stage pick pocketing is done. As someone says--a distraction. If you put your hand on his right shoulder and at the same time loaded with the
left hand.
Most humans cannot concentrate on 2 happenings, at the same time.
Or ask him to place the deck in his inside pocket so you cannot touch it. At the same time as he pulls open his jacket..load.
Lean across his body--'Excuse me' -- as you place the deck on the table or hand it to someone else on the man's right . As you do so..load in his left.
2. Do the Knife Thru Coat. Now if the coat is being held by him--either with both his hands or on a hanger--well the pocket is right by you
Allen Tipton
Began magic at 9 in 1942. Joined Staffs M.S at 13. Nottm.Guild of M. (8 times President. Prog Director 20years)IBM. Awarded Magician of Month 1980 By Intern. Pres. IBM for reproducing Dante's Sim Sala Bim. Writes Dear Magician column for Abra. Mag.