ok so you just got a keyboard and somehow you also have fallout new vegas installed, now what?
well you gotta learn to press the ♥♥♥♥♥♥♥ space bar

now you must gain the power to press the dang darn spacebar
first, find your hand, if you dont have one use your foot
two, move your hand/foot over the keyboard to get ready to press the spacebar
third, look for the big, black, key, and hover your hand/foot over it

now, with the force of zeus, slam the spacebar with your hand/foot, and then, you have learned how to press the spacebar