[header] How to use a pay phone [title] Carry enough coins for a phone call. [step] Some pay phones-especially those in airports and train stations-also accept credit cards these days, but the charges for those can be extra high. Make sure you read the cost on the machine before paying. 
[title] Buy a small pack of wet wipes and gently wipe over the phone. [step] You don't know who has used it before you.