1.don’t be annoying cause people hate annoying people who follow them around
2. Give them personal time to talk and think
3.smile and be confident!!
First see if you can get a potential customer to identify their interest. Listen careful. Look interested. Offer suggestion - pros and cons. Honesty might not get that sale but they will refer others. Give them time taken it all in. Other suggestion: Pass out business cards everywhere you go, network and always smile.