Thanks John, I've been trying to get her to settle in the living room and garden, not quite at Chloes level yet!You wont go far wrong if you work to the 5 minute rule. 5 minutes of exercise for each month of age. So at 3 months it's 15 minutes.
But remember, it's 5 minutes of exercise! At 3 months with my pups that might well take 30 minutes of longer. Because I will be using the time training there could be a couple of sit stays added in, or steadiness training where my pup sits while I toss dummies around. I also like to sit quietly on a seat with my pup watching the world go by, learning patience, or standing chatting to a passer by. All this time my pup is doing nothing so it does not count as part of the exercise time. So it's not so restrictive as it might appear. Below is Chloe as a puppy with Amy doing a steadiness exercise in the garden. As she was destined to be a working gundog this was all part of her training, learning to sit quietly while things fall around her.
(106) Steadiness - YouTube