أنشئ حسابًا أو سجّل الدخول للانضمام إلى مجتمعك المهني.
First, Analyze his behaviors according to personal reasons or professional reasons .Second, Try to talk with him if the problem can be solved between you and him with considering it from all point of views.if that failed talk with "'HR" department.In the final, raise it to the Manager.
