This is how to draw the character
そ. It is composed of one continuous stroke.
The stroke is across, then downward in a right-to-left diagonal, across again, and finally curving in a counter-clockwise semicircle. This stroke
is reminiscent of the Roman Z with a C drawn on the end.
そ
is the
hiragana equivalent to ソ
in katakana, so it stands for so.
どうぞ
should, therefore, read douzo, but actually it is pronounced doozo,
i.e. the u sound is affected by the preceding o sound. In other words, う here functions for
elongation. To get
どうぞ
on a computer, you need to type douzo, however.
This is how to draw the character
も.
It is composed of three strokes.
The first stroke is across.
The second stroke is also across.
The third stroke is down, then curves across and then up.
も
and モ
look
similar, and they indeed stand for the same mo sound. Notice that the vertical stroke in
も
starts from above the upper horizontal bar, while that in モ
begins from just below the upper horizontal bar.
Like どうぞ
is pronounced
doozo, どうも
is pronounced doomo,
う
acting as an elongation effectively.
This is how to draw the character
り. It is composed of two strokes.
The first stroke is down.
The second stroke arcs over the top then goes down, curving to the left.
り
and
リ
also
look similar, and they stand for the same ri sound indeed. They were created from the same kanji. As you may have noticed, compared with katakana which are rather straight and
squarish, hiragana look
generally curby and roundish. (Katakana is sometimes described as "masculine" while hiragana "feminine".)