Ive heard many people say this so what does this mean
"punta"

It means tip.

Maybe you hear this in a store, or a restaurant?

No, punto is a general point, and punta is the tip (of a knife etc) and not the word that is "worse than the b word" and even that word has it's uses. La punta aguda = the sharp tip (of a knife etc)

Explanation:

hola, mi nombre es yo tengo hermanos y hermanas. mis padres celebretamos navidad juntos.

fill in the balnks and add a couple of remarks and you should have it!