The timing of telling might be as important as the doing. If, for example, someone asks about X and you did X three months ago, and you only tell them now, afte

The timing of telling might be as important as the doing. If, for example, someone asks about X and you did X three months ago, and you only tell them now, after they mention it, you might put it into their heads "holy shit, this person did X, which I thought was hard, and either forgot about it, or forgot to brag, wow..."