I do find a "ching-ching" bell to be the most friendly means of letting hikers know your there. Seems no matter how nice you are some of the dimwit hardcore grumpy types give you the stare down. On my vintage mtn bike I have both chinger and old honk honk horn, they move with a smile usually. You need a sence of humor and can't be a weight weenie to run my set up.