FWIW I had a girl first and then a boy, and temperamentally they have both been pretty much the same.
I worried before he was born that I would be pushing my luck to get two gentle souls, but if anything he is an even more gentle than she is.
He was more clingy at first, wouldn't let me put him down in the first months, but it probably helped to establish a stronger bond between us, and once he could crawl I just learned to walk slower so that he could keep up.
You really don't need to worry, there are no hard and fast rules. I'm sure you'll be fine.