I Fell And Sprained My Ankle And Broke The Outside

I fell and sprained my ankle and broke the outside bone on my foot. The doctor prescribed a walking boot and advised me to keep my foot elevated and limited walking. I failed to ask what is meant by "limited walking". Would that mean bed to bath only or include walking around the house, going to the grocery store or out to eat? I fell on 1/1/17. I've had the boot since 1/5/17. He did say I don't have to wear it to sleep. Should I wear it all the time otherwise, even when resting in a lounge chair? I go back for a follow up in 6 days. I am 63 yrs old. I take Fosomax. I have pre-osteoporosis.