A you enter Second Court from First Court, you're on a straight path to the Fellows Building (the building you can see in the top pictures here, including a gated archway leading through to the Fellows' Garden). A second path curves to the left, leading to Third Court, and there are also paths to the right taking you to Upper Hall (the College canteen) in the nearest corner, or to the Second Court accommodation (C, D and E staircases).
Second Court also has a very useful side gate next to the Fellows' Building (for use of College members only - it's card access). The side gate gives you immediate access to Christ's Pieces (the Victorian park next to us, including tennis courts), the bus station and a Tesco Express (supermarket). The pedestrian path running past the college on that side is called Milton's Walk at one end and Christ's Lane at the other end.