Smile For Me

Hi molk! I'm Kat, nice to meet you, and I will review this delightful piece.
I believe this is the first review, at least it is right now.
Now, onto it!

Stanza by stanza!

A day,
is only 24 hours,
A week,
is only seven days,
An hour's,
only sixty minutes
don't worry
the time will fly away.
So dry those tears sweetheart,
wipe the pain off your face,
and smile for me,
because you'll see me soon one day.

Turn the comma after 'hours' to a period. Make it a statement. Do the same to the following similar lines. Also, I think you should start with the hour is only sixty minutes, because you pass from week to hours. Or maybe just cut it out, so that you don't have too many repetitions.
Capitalize the 'don't', on the seventh line. Comma after 'worry', on the same line.
'the' on the time part, isn't needed. It flows nicer without it.
Comma after 'tears'.
The last line is too long. I think it would flow better, if you break it into two, right after 'me'. Also, if you do so, put a comma after me, and after soon, but only if you brake it.
This stanza was very sweet. I can really imagine a mother, or a brother, or even a lover, saying this to a loved one.

Smile for our yesterday,
and everything we had today,
I don't know
what tomorrow may bring
but of two things I'm sure
your smile will be leadin' me home,
and i know,
i know,
that what ever happens,
I'll be thinking of you.
so smile for me, honey
'cause you're on my mind.

Turn the comma after 'today' to a period. I think these too lines are a bit off. Maybe add a happier before yesterday, or something like that, so that the connection between these two lines is more evident.
Comma after 'know', on the third line. Comma after 'bring'. But a : after sure.
Oh! The sixth line is so sweet! So fresh, so lovely. It makes me feel so happy, so melted, when I read it. That means that your description of the emotion is working on me.
Capitalize the two I's, on the two following lines.
Capitalize the 'so', and put a comma after 'honey'.
On the last line, you shouldn't use 'cause in poetry. You should use because. But as that would only ruin the flow, I'd suggest you just cut the last line, and end with the smile one. It's just so sweet, and the repetition with the above stanza is adorable and gives emphasis to the emotion.

Don't let the distance fool you,
you'll always be mine
So smile for me, love,
just one last time
i just want to memorize it
for when you're not near
smile for me, sweetie,
'cause you've got me all to yourself
I'm nobody's but yours.
So let me see that smile,
smile for me.

I broke this stanza, only because it was too long to review in one piece.
Period after 'mine'.
See? Here, you've put 'love' between commas, as you should have done in the above stanzas. Now I know it was just a distraction
Comma after 'time'.
Capitalize the I. Comma after 'it'.
Capitalize the 'for'.
Again, put 'because'. Comma after 'yourself'. That way you connect this line to the line below.
"So let me see that smile," Instead of a comma, put a semi-colon (;).

Don't cry.
Tears don't change anything,
but your smile can fix everything.
So baby just hang on,
and smile
'cause I love you.
so it'll all be OK.
Just smile for me, angel
and make the world OK.

Exchange the 'don't for a 'won't. It sounds better that way.
Period after 'and smile'.
Turn 'cause to because.
Capitalize the 'so'.

This was such a lovely poem! I absolutely loved it! Great

PM me if you need anything, and keep writing, dear, because this was such a wonderful read!
*Kat*