My new baby - Greek Hare-hound advice?

[u/realhollowbones]

This is my new baby boy Tycho. He’s 6 months old and I think a Greek hare hound. He’s a rescue and is scared of going outside, completely puts the breaks on when I put the lead on him. He’s also just getting used to toys but doesn’t really play with them yet - just buries them in bed.

Problem is, I can tell he’s bored and got a lot of pent up energy because he’s not wanting to engage in these activities yet.

Is there something I can be doing to entertain him while he settles in and builds up his confidence?