Confession time: as an introvert I don't find it easy starting conversations and one of my fears is that I run out of things to naturally ask or say, resulting in the conversation ending very awkwardly.  I think that many of us also have similar struggles when it comes to conversing and communing with God in prayer.  But here's the amazing thing about praying to the God who is Trinity: we are joining a conversation that has always already been going on between the Father, Son and Holy Spirit.  We don't have to warm them up or work ourselves up - we can just jump on in!  What's more when we come to God with our needs and requests, then we aren't being annoying or distracting to the Triune conversation - rather a space has already been opened up in the heart of God to receive and answer our prayers.  You see when we make our supplications to God we are actually participating in something that is intrinsic to the divine life shared by the Persons of the blessed Trinity.  Andrew Murray puts it well when he writes:

The Father always delights in hearing and granting the prayers of His Son - and so too He delights in the prayers of all His children, who through faith and union with Christ are adopted into His family.  We have the privilege to call upon the Father in the name of His beloved Son and with the help of His Spirit.  So what are you waiting for?  Join the conversation and be assured that your requests are pleasing in your heavenly Father's sight.