1. It is sunnat to use the Miswaak at the time of every Wudhu. (Abu Dawood, Vol. 1, pg 8 (at. Targheeb wat Tarheeb)

2. The sunnat method of holding the Miswaak according to what Hazrat Abdullah Ibne Mas’ood () has narrated is as follows:
Place the small finger of the right hand below the Miswaak. Place the thumb below the head of the Miswaak. The remaining three fingers will be placed above. (Shami-  Vol. 1, pg 85)