Hi there and
to the forums!
You've come to a great place to learn even more about budgies!
If Genji is gently nibbling on your fingers, that's a good sign! He's comfortable enough with you to explore your hand.
If you leave your budgies' cage door open in a budgie safe room with no other pets or doors/windows open, and they come out of the cage, you don't have to pick them up to get them back in. Most times they'll go back on their own.
Be sure to read through the forum's many Budgie Articles and "stickies" (threads "stuck" to the top of each subform for easy reference) to ensure you're up to date on all the best practices for budgie care.
You'll find answers to most of your questions and great tips about taming and bonding in the "Taming and Bonding" section of the forums
If you have any questions after reading through everything, be sure to ask!
We look forward to seeing you and your little budgies around the forums! We'd love to see pictures of them if you have any to share!