If they are ignoring you on porpose,maybe you dont want to associate with them anyhow-if you are just shy,pray for god to take the shyness from you. If you step out in faith,God will support you. and be yourself. God will make you confident and strong. I used to be afraid of my own shadow at one time
now i am a confident christian,and am not even afraid to testify or street preach.....good luck