The fit guys take any - and every - opportunity to show off their results. They hope that you're impressed. You should be. Their hard work is an example you could usefully follow... 

Friends give encouragement and support in the gym - and great companionship elsewhere! In the gym first...   ...or, sometimes, not such helpful support! ... ...  But seriously...   Other environments - but there'll sometimes be a bit of flexing and posing... Yeah- note that age should not be stopping you!