1. If you use an evade script, put big delays so it's really human or just only use drawings so you evade on your own. Looks way more legit so you don't get reported.
2. Use humanizers if you want to look more legitimate to other players.
3. Don't play the obvious champions unless you really humanize, or play without holding spacebar half of the time. (cassio, syndra, xerath, kogmaw, etc.)
4. If you get called out, either don't say anything or say you're smurfing. I like to link my high elo accounts op.gg if I'm smurfing so I am more believable. (If you don't have your own, just show them some random master tier player op.gg, they will probably fall for it )
5. You don't need to main mid/adc with scripts. It's fine to main jungle/top/support, utility scripts help so much and can be even more important than mechanics. You also will rarely get called out. (Probably never if you don't use an evade script.)
6. NEVER USE EXPLOITS.
7. If you ever play against a pro player who is currently streaming and has a lot of viewers, be REALLY subtle. You don't want to get mass reported by 10000 people.
8.. It's okay if you mess up and get reported once. Don't worry about it. Play to have fun, if you don't give a **** about getting banned, you can do what you want , but if you really want to reach high elo without getting banned, you should listen to these tips. Maybe you've heard some of them, but you really shouldn't disregard them.
And If you call out other scripters while you script, you are the most filthy scum in the world.