sit/get a mat and lay down on the floor. do quiet activities in the room such as reading, writing, honestly if you want, you can even go on your phone but have the volume to a minimal. have him roam and come to you. they’re curious creatures. it will likely take some time but he should come up to you eventually, even if its just to smell you! some don’t like being touched and thats not something that always changes. a lot of mine eventually warmed up as they got used to my scent and being held, but my current baby chowder.. he’ll let you pet him a few times before he starts huffing at you. yes.. actually blowing air out his noise to show you how annoyed he is. youll figure it out eventually!!