Again this can be divided into two main areas: missing lifesavers and failing to spot things. During the process of negotiating a junction you are required to do various observation (which can include a lifesaver or looking right-left-right). If you miss one of these out then you will normally get a rider fault. If there was something to see (a vehicle), and you didn't look, then this will be a serious fault. The other area where this can be marked is emerging from a junction and either failing to spot another road user or misjudging its speed; either way if you cause another vehicle to swerve or slow down then you will have failed your test. Typically, an approach speed that is too fast will contribute to this.