Choose a sunny, but not very hot day. You can use different routes depending on your available time and physical condition. Using the link to my shared place list you can find some marked points known by Google too. During weekend you will find lot of people there, however even in these days you can find less used paths, when you can walk for several minutes without meeting others (or another group if you are in a group).
My shared google map list See an example view, when walking up from Zugliget to János hegy through Tündérszikla (Fairy Rock)
