In one example, a device includes at least one processor and at least one module operable by the at least one processor to output, for display, a graphical user interface including a graphical keyboard and one or more text suggestion regions, and select, based at least in part on an indication of gesture input, at least one key of the graphical keyboard. The at least one module is further operable by the at least one processor to determine a plurality of candidate character strings, determine past interaction data that comprises a representation of a past user input corresponding to at least one candidate character string while the at least one candidate character string was previously displayed in at least one of the one or more text suggestion regions, and output the at least one candidate character string for display in one of the one or more text suggestion regions.