Suggestions and similar effects are roleplay effects, which alter how your roleplay your character somewhat. MESMERIZE is a Game Call, which has specific rules that you must respond to in a specific way. Calls take precedence over other effects. So if you have a Triggered Suggestion to do a pirouette when you are Mesmerized, you would not respond to it until the Mesmerize broke.

You cannot cross the OOC site boundary In-Character. Event sites are shielded against entry and exit a short distance from the OOC site boundary. The only way to leave the IC area In-character is via a Gateway, Elysian Nexus Tree portal or similar.