engagement parties are fucking retarded (omg you already knew that). I probably would just give money or a gift card. But Id prefer to give nothing, since you will be gifting them for the wedding anyway (and the shower/s if youre female which, based on what youre wearing, Im assuming that you are) and then you probably have to pitch in for the bachelor party and shit like that. fuck if youre standing up in the wedding then theres added cost right there.