You should really let him settle in more. BRBs are NOT normally anywhere as bitey as people say. Ive had 4 brbs over 7 years and Ive only been bitten once.

The biggest thing is letting him settle in. You havent had him very long and you normally dont handle these guys until they have settled in for about a week. Id completely leave him alone. Remember, even though this is exciting to you, its very stressful on him and unneeded handling just makes it worse.