I don't get a lot of honks, as a general rule, no, I don't look. Most of the honks are a quick beep, which is generally a driver trying to alert me to their presence as they pass. I appreciate the gesture, but it is generally useless. I am usually aware of them already, and as a cyclist on the road I am expecting to be passed often and ok with it as long as it meets the three foot rule. The other situation, far more rare, is the long, angry honk of a driver who is unaware of the legality of my riding style. These I very much ignore as any other response seems to encourage their ******baggery and likely only endangers myself.