When my friends come to me for help in religios matters (Alhumdulillah), at times I tell them to do a particular good deed, like praying Tahajjud or reciting a lot of durood and that I do it too. I tell them so that they may be encouraged because if I can do it, then why not they themselves… I do take a lot of care not to fall for riyaa, is what I do correct and how should I take care not to fall into riyaa in this case?