Ok my votes...
Garter Snakes are active a lot, handle well and are available in many colors. (Flame, Blue, Albino, Orange, etc. ) and are super easy to care for. Occasional musk when startled and some specimines will never really calm down. (rare)
My Cyclophiops Major is totally awesome, he sits up in his tree and to him that IS hiding, he is always active during the day, LOVES being held, never musks or bites. But requires an enclosure that stands like a soda machine, is delicate and demands daily attention. so this species may not be for everyone.
Corn Snakes are another choice, they may hide a lot, but never mind if you reach in and get them out. My kids seldom leave our corn snake alone, and he seems fine with all the attention.
Red Tail boas are great if you want a bigger snake, and unlike tree boas are less likely to bite your face.
I have found that some snakes are happiest if you just observe them, and others like interaction. Some of the most exciting snakes to observe are also the worst to try and hold.
So we just keep both 
Regards,
Wayne A. Harvey


our critters
-----

1.2.9 Storeria dekayi Casper, Xena, Athena, & Kids
0.0.2 Thamnophis marcianus - Checkered Garter Snakes
0.0.1 Thamnophis sirtalis - common Garter - Princess
0.0.1 Nerodia sipedon - Water Snake - "Aqua"
0.1.10 Storeria occipitomaculata - Red Belly snakes
0.0.1 Amelanistic Corn Snake "CY" Juvinile CB
0.1.0. Pueblan Milk snake "Oreo" adult CB
1.0.0. ASIAN GREEN SNAKE 3' WC Cyclophiops major
0.0.1. Savannah Monitor "CHOMPER" CB
0.1.0. Green Anole "Crystal" WC
1.0.0. K9 "ACE" Black Cockapoo
1.2.0. Feline"Felix" "Kaja" & "Silver"
0.1.0. calico RAT
2.4.?? Mice - Feeder farm - Crickets / fish
More herps than I could ever list out back on the land. 
