What to say when someone response to your DM

[Youdo Thirakul]

Since I don't have a lot of capital, I'm doing "driving for dollar" i think that's what it called. Basically I'm driving around n writing down address I'm interested in buying and looking at the city website and finding the owner then mailing them basically saying I want to buy their property with my phone number.  I'm new at this so my question is what should I be looking for or what questions should I be asking them so i can make a deal?  I know what's the comp around the Anchorage market is and i know what's the property value is, but I don't want to come low that they just hang up on me.  Is there a script I can download or anything that is working for you guys?