Well that's a very broad question. The sings of insecurity might be many in one person. Every person has at least one sign of insecurity which other might not able to detect. Like
And lot more signs.
You can cope up with your insecurities by your intelligence. And don't ever let your fear rule you. Always try to make healthy discussion and when you feel that you are wrong accept it rather keep on doing discussion which has no end. If you are fat then don't let others make fun of you. Try to reduce some weight and tell them who you really are. If you can't lose weight then live with it and let them know that how better you are from them in terms of brain, knowledge and skills.
- If you want to hide your biggest fear of your life then you might try to laugh all the time or put a smile of your face all the time when you are surrounded with people.
- Always snub people if you have to prove that you are right when no body is listening to you or arguing with you.
- Try to remain back in crowd (group of friends) because of physique (obesity etc) or lack of confidence (like can't speak English etc).
- Try to fight on small things or do some stupid thing in order to grab attention as you are feeling ignored etc.
And lot more signs.
You can cope up with your insecurities by your intelligence. And don't ever let your fear rule you. Always try to make healthy discussion and when you feel that you are wrong accept it rather keep on doing discussion which has no end. If you are fat then don't let others make fun of you. Try to reduce some weight and tell them who you really are. If you can't lose weight then live with it and let them know that how better you are from them in terms of brain, knowledge and skills.