Contact con = [Select Title from Contact where id='003g000000YxzQj'];
system.debug(con.Title);
con.Title += '1';
update con;

//need to commit this change now

Long startingTime = System.now().getTime();
Integer delayInMilliseconds = 1500; // One-second delay
while (System.now().getTime() - startingTime < delayInMilliseconds) {
   // Do nothing until desired delay has passed
}
system.debug(con.title);