What is a safe dress code to follow for guys for these events. I've never attended and just wanted to get a better idea of what to expect.

Some are black tie and suits?  But, majority are business casual.

Nice pair of ironed jeans, and a Button down shirt or polo, dress shoes.

 Look "NICE"! Not sloppy!

I've been to socials at the beach and that speaks for itself

Okay thanks, theres a theme and they sent me the details about it so I have a better idea of what to wear. I guess I just jumped the gun on this post lol.

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Only if there is a large couch for you to lay on and your head resting on meeeeeemeeeeeee's lap so  
she can read you the book! LOL

no kakis and tennis shoes and white socks would do the trick. LOL

I do recommend wear something that is easier to remember since ladies talk to several gentleman that night.