All relative clauses are marked through a set of non-manual markers glossed as ‘rel’ which contains: a) at least one part of the upper body —shoulders or torso— orientation towards the locus where the head noun of the relative is located in the signing space b) eyebrow raising, c) lips tensed and d) chin pointed upwards or downwards.
The body orientation and the eyebrow raising are the most prominent non-manual markers whereas the lips tensed and the chin movement can be omitted.