I think I'm going to lie to my friend.
Is there a reason you want to lie to them?
Sometimes telling the truth isn't the best policy.
You may be right in that regard, but this lie may harm your friend more than you think. Before going through with this decision, go over the consequences of your actions to ensure that you don't actually hurt your friend with this lie.
I don't care about that. I'm just going to lie to them anyway.
Generally speaking, it's not good to lie to a friend as they trust you and you run the risk of harming your friendship if you get found out. You should be more careful with their feelings and think long and hard before you deceive them.