Method for assisting user input to a device

A method for assisting user input, comprising:

• manipulating a volume of fluid to transition a dynamic user interface into a first keyboard position, the dynamic user interface comprising a substrate coupled to an undeformable region of a tactile layer, the tactile layer comprising a set of deformable regions adjacent the undeformable region, each deformable region in the set of deformable configured to transition between elevated positions relative to the undeformable region, wherein a subset of deformable region in the set of deformable regions is arranged at a first elevated position in the first keyboard position;
• displaying a set of keys on a display coupled to the substrate, each key in the set of keys defining an input region and corresponding to a deformable region in the set of deformable regions;
• receiving a selection of a first key in the set of keys through a touch sensor coupled to the substrate;
• predicting a selection of a subsequent key based on the selection of the first key;
• manipulating the volume of fluid to transition the dynamic user interface into a second keyboard position, a first deformable region corresponding to the subsequent key arranged at the first elevated position and a second deformable region corresponding to an unpredicted subsequent key arranged at a second elevated position tactilely distinguishable from the first elevated position in the second keyboard position;
• and
• in the second keyboard position, enabling selection of the predicted subsequent key through the first deformable region and selection of the unpredicted subsequent key through the second deformable region.