X and . (period)
Reach down with your ring fingers: X with the left, the period with the right. From now on, sentences can end with a period.
Put your fingers on the home position (F and J) and press Space to start
xxx ... xxx ... x. .x sx l. sxs l.l six box fox mix next text taxi extra relax exam example. the fox is in the box. six taxis wait outside. mix it well. relax. next, we read the text.