| First off, hi and welcome from Virginia!
1: Being friendly to people is a good thing. If he were vicious at this age, I'd worry, lol. No need to fret, his friendliness will never diminish his ability to protect you and your family later. Ideally, you want a dobe who can assess situations correctly and who can distinguish between good people and bad people. Sounds like you're actually off to a good start, lol. Keep socialializing as much as possible.
2: Jumping... all dogs jump. Dobes are good for it, lol. What you can do is set him up in situations where he must sit before any interaction. Ask friends to come by and impose a sit before any petting, etc. Maybe leave some cookies in the mailbox with strict instructions to tell the dog to sit once they (friends) enter your home. In public, this is up to you to reinforce. NO ATTENTION until he sits nicely, period! Don't worry, you sound like you're on the right track. Enjoy puppyhood, it flies by! lol.
Take care and good luck. |