Hello there and welcome to BYC!
Young roosters can be pretty spunky. Some will calm down over time and be quite friendly. Others can become quite aggressive and even hurt you. Especially once they grow their spurs. So time will tell.
A treat or two each day can help break up boredom and help the birds bond with you. Every time they experince something positive with you, they do grow closer to you and food is a great bonding agent. Here is our treats chart of some things you might consider offering up to your flock...http://www.backyardchickens.com/a/chicken-treat-chart-the-best-treats-for-backyard-chickens Just keep the treats to once or twice a day and only what they will clean up in a few minutes. Treats should only compromise about 10% of the diet.
5 to 6 months is a pretty common time to start laying. When their combs, faces and wattles start to get large and red and the birds start to squat for you when you lean over them, (the birds will hunker down low to the ground) the eggs should be coming down the pipes soon! At this point you would want to get them on layer feed and oystershell on the side for laying those hard shelled eggs.
Good luck with your new birds and if you have any other questions, feel free to ask. Welcome to our flock!