Wording help

Throwing a baby shower and including a poem for the wishing well inside the invite can u help me on how to word it

here are the first few line but with 2 ways to say it tell me which o i should put

Please join us in welcoming the new little one
With friends and food it'll be lots of fun
If all brought a book, it would be SO swell
We'll try to fill the whole wishing well

or

Please join us in welcoming the new little one
With friends and food it'll be lots of fun
If all brought a book, it would be REALLY swell
We'll try to fill the whole wishing well

the word in caps is what i need help with

Really!