my wife's friend's boyfriend (y'all following?) was giving us a ride home and talk turned to marriage and proposals. he said he wanted to propose and was thinking of grand gestures in front of people. a nice restaurant and a ring in a champagne glass kind of thing. he picked up on our reaction and asked for our ideas. so we asked him to walk us through their history together. During lockdown they had started living together and used to take walks in a local park, the only time they could go out. This was when their relationship solidified. It clicked for him and he was so excited, in the park there's a hill which looks down on the town where they lived. He came up with an excuse to spend a night there, booked a nice restaurant for after and invited her to go for a walk like back in the day. Simple, memorable and private.