First thing is initiative rolls when you encounter a hostile creature you roll a d20 and depending on who rolls highest number gets to go first
Second is attack rolling witch depends on your class in the game which is the d20 + your attack modifier, dexterity modifier or wisdom modefier usually, but witg those you usually need to roll higher then either their ac, fort,, ref, or will
After you successfully make an attack roll you then roll for damages which is mostly d4,d6,d8, or d10 in rare cases a d12
The number you roll is the damage subtracted from their health (strength modifier is added for weapon attacks to damage rolls)
Death saves are used when your HP reaches 0 you fall prone you have to roll at least a 15 to recover and spend a healing surge to get back up
Interacting with obstacles uses the section marked skills for example leaping over a pit that requires 17 or higher to cross you'd use a d20 + acrobatics to attempt to get over it. For sneaking you can use a stealth check + d20 to hide in shadows and whatnot.
For persuasion you use the charisma modifier + the d20 (yes the d20 is used for most things lol)
Searching rooms requires a perception check usually dungeoneering +d20 to find traps and treasure and ambushes
Wait wait wait, I think I made a mistake with what I was saying, This did answer a few of my questions, but I meant with the character sheet, getting the stats right.
Second is attack rolling witch depends on your class in the game which is the d20 + your attack modifier, dexterity modifier or wisdom modefier usually, but witg those you usually need to roll higher then either their ac, fort,, ref, or will
After you successfully make an attack roll you then roll for damages which is mostly d4,d6,d8, or d10 in rare cases a d12
The number you roll is the damage subtracted from their health (strength modifier is added for weapon attacks to damage rolls)
Death saves are used when your HP reaches 0 you fall prone you have to roll at least a 15 to recover and spend a healing surge to get back up
Interacting with obstacles uses the section marked skills for example leaping over a pit that requires 17 or higher to cross you'd use a d20 + acrobatics to attempt to get over it. For sneaking you can use a stealth check + d20 to hide in shadows and whatnot.
For persuasion you use the charisma modifier + the d20 (yes the d20 is used for most things lol)
Searching rooms requires a perception check usually dungeoneering +d20 to find traps and treasure and ambushes
That's basically how to go about starting
Roll 4 six sided dice take the highest three of the four (do this 6 times and that is how you roll stats :3