A lot of male interactions and mannerisms are sort of just an exaggeration or "stronger" version of female mannerisms. As Lori said, Shake hands with a firm grip, widen the hand as if you are intending to control when the contact breaks off. A pat on the back becomes a slap on the back.
Men rarely hold their hands together. Men will cross their arms a lot more than women.
With conversation think about being in control. Men but in, they don't wait for someone to finish speaking. They will generally use shorter sentence structures in conversation and will typically use active verbs rather than passive verbs e.g. "He said" (male version) vs "I heard him say" (female version).
Good luck
