In a block of the 5 houses in front of you. You count 1, 2, 3, 4, 5.

Try 1, 3, 5. (as if there are 5 houses in front of you), you skip 2 and 4.

So count and staring the house 2 and 4. 

5, 3, 1.

4, 2.

2, 3, 5.

2, 3, 4

Looks okay. You are nervous, but not THAT. Ringing.

No, you are ringing on 5, 3, 1.