This paper shows that self-mention and attitude markers are the most common characteristics of stance in Boko Haram and Al Shabaab's radicalist English Twitter accounts. Stance is employed to voice success, content, malice and odium by the radical groups under scrutiny. The diverse voicing of attitude and self-mention depict positive in-group and negative other-evaluation (i.e. governments and institutions), referred to as unbelievers and renegades.