A presentation system for enhancing accuracy of gesture detection, the presentation system comprising: at least one touch sensitive display; at least one processor coupled to the touch sensitive display; and a memory storing instructions, the instructions comprising instructions executable by the processor to cause the touch sensitive display to: detect (502, 504) a plurality of touch points within a time period of a predetermined length; determine a gesture type, wherein determining the gesture type comprises: determining an average size of the touch points within the time period; determining a standard deviation of sizes of the touch points within the time period; and determining an average orthogonal distance of the touch points from a predetermined line; upon expiry of the time period, determine that the plurality of touch points corresponds to a drawing gesture based on the average size, the standard deviation of the sizes, and the average orthogonal distance of the touch points from the predetermined line; display, in consequence of the determination that the plurality of touch points corresponds to the drawing gesture, one or more indicia on the touch sensitive display corresponding to the plurality of touch points of the drawing gesture; display indicia along a continuous trace of touch points from the last touch point of the predetermined time period; and ignore any touch points not within the continuous trace while the continuous trace takes place. at least one touch sensitive display; at least one processor coupled to the touch sensitive display; and a memory storing instructions, the instructions comprising instructions executable by the processor to cause the touch sensitive display to: detect (502, 504) a plurality of touch points within a time period of a predetermined length; determine a gesture type, wherein determining the gesture type comprises: determining an average size of the touch points within the time period; determining a standard deviation of sizes of the touch points within the time period; and determining an average orthogonal distance of the touch points from a predetermined line; upon expiry of the time period, determine that the plurality of touch points corresponds to a drawing gesture based on the average size, the standard deviation of the sizes, and the average orthogonal distance of the touch points from the predetermined line; display, in consequence of the determination that the plurality of touch points corresponds to the drawing gesture, one or more indicia on the touch sensitive display corresponding to the plurality of touch points of the drawing gesture; display indicia along a continuous trace of touch points from the last touch point of the predetermined time period; and ignore any touch points not within the continuous trace while the continuous trace takes place. detect (502, 504) a plurality of touch points within a time period of a predetermined length; determine a gesture type, wherein determining the gesture type comprises: determining an average size of the touch points within the time period; determining a standard deviation of sizes of the touch points within the time period; and determining an average orthogonal distance of the touch points from a predetermined line; determining an average size of the touch points within the time period; determining a standard deviation of sizes of the touch points within the time period; and determining an average orthogonal distance of the touch points from a predetermined line; upon expiry of the time period, determine that the plurality of touch points corresponds to a drawing gesture based on the average size, the standard deviation of the sizes, and the average orthogonal distance of the touch points from the predetermined line; display, in consequence of the determination that the plurality of touch points corresponds to the drawing gesture, one or more indicia on the touch sensitive display corresponding to the plurality of touch points of the drawing gesture; display indicia along a continuous trace of touch points from the last touch point of the predetermined time period; and ignore any touch points not within the continuous trace while the continuous trace takes place.