Ok.. maybe I shouldn't worry... yes.. my boyfriend is the only one who didn't stop him.. thanks for your advice!

Thank you all for your advices, I tried the plastic bottle thing, and Saya goes all our trying to get it out, but she actually gets it out quite easily. haha

Congrats on your new puppy and welcome to the forum.

Kongs, treat puzzles and games are great for mental stimulation but it can also be as simple as walking somewhere new and taking in the new smells and sounds. Saphire loves to walk in the evening because we go a different route every night. She smells everything and looks like a tourist trying to take it all in.

Also keep in mind that at this age bonding is super important. Make sure you spend lots of time talking to your pup. You can talk about everything and nothing at all but use her name a lot so she learns her name and is really used to your voice. I talk to Saphire all the time (on walks, when hanging out at home, when training, when playing, etc.). This really helps with the listening out doors and in noisy environments. As long as I start any command with her name she listens (at least most of the time, although I can tell when she can't hear me vs. she doesn't care). Its like they know you are talking to them and you are going to keep talking to them so they listen for your voice more. It has really helped alot with Saphire.

Hope this all helps. Post pics soon.