To help somebody.
I have NO idea what you're trying to ask about mines... If you're asking what "lend someone a hand" means, it means to offer assistance, as if you were reaching out your hand to help them.
This is a colloquialism. To give a hand or lend a hand means to help or assist.
http://www.wikihow.com/Make-a-Poster This gives you 7 steps on how to make a good poster. By hand or computer.
Help, assist.
lend a hand
Meaning he will help you out.
Lamp Unto My Feet - 1948 To Lend a Hand was released on: USA: 14 December 1969
I don't know about "lay a hand", but "lend a hand" means to help someone out
To help with something or to help someone.
if you do (its on my hand) for a slogan then you can do a poster with hands all over it.
money, intelligence, time, and friends to lend a hand.